A self-locking device

Abstract

The utility model belongs to door and window technical field provides a self -locking device, including lock seat subassembly and lock point subassembly, the lock point subassembly includes first base, lock piece and unlocking piece, the first base is equipped with recessed cavity, lock piece with the unlocking piece all can slideable be provided in recessed cavity, lock piece with the first base between and the unlocking piece with the first base between respectively be equipped with first elastic element and second elastic element, the lock seat subassembly includes second base, sliding block and third elastic element, the sliding block can slideable be provided on second base, the one side of sliding block away from second base is equipped with lock groove. The utility model can be after the accidental closing of door and window fan to its self -locking, prevent door and window fan to and fro swing, be favorable to the security performance and life of door and window of improving.

Description

Technical Field

[0001] This utility model belongs to the field of door and window technology, and specifically relates to a self-locking device. Background Technology

[0002] Doors and windows are typically controlled by a hardware system, which generally includes handles, actuators, lock cylinders, lock seats, and transmission components. The handle drives the actuator, which in turn drives the lock cylinder, thus achieving the opening or closing of the door or window through the engagement of the lock and lock seat. However, when doors and windows are opened, the door or window sash is prone to swinging back and forth in strong winds. This can damage the doors and windows, and in severe cases, even cause them to fall, especially in high-rise buildings or coastal areas. 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 self-locking device that can lock the door or window sash after it is accidentally closed, preventing the door or window sash from swinging back and forth, which is beneficial to improving the safety performance and lifespan of the door and window.

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

[0005] A self-locking device includes a lock base assembly and a locking point assembly;

[0006] The locking point assembly includes a first base, a locking member, and an unlocking member; the first base has a cavity, and the locking member and the unlocking member can be slidably disposed in the cavity; a first elastic element and a second elastic element are respectively provided between the locking member and the first base and between the unlocking member and the first base; the elastic force of the first elastic element and the second elastic element can respectively cause the locking member and the unlocking member to move in the direction of extending out of the cavity.

[0007] The locking assembly includes a second base, a slider, and a third elastic element; the slider is slidably disposed on the second base; the elastic force of the third elastic element is used to cause the slider to return to the self-locking position; a locking groove is provided on the side of the slider away from the second base;

[0008] In the self-locking state, the locking member is embedded in the lock groove, the lock groove restricts the movement of the locking member in the opening and closing direction, and the unlocking member is located outside the lock groove; the handle can drive the locking point assembly to move along the extension direction of the lock groove to cause the locking member to slide out of the lock groove; when the locking member slides out of the lock groove, the unlocking member corresponds to the blocking part on the slider.

[0009] When an open door or window sash is moved towards the locking direction by a strong wind or accidentally, the locking point assembly moves with the sash in the locking direction. At this time, influenced by the slider, both the locking and unlocking components move into the recessed cavity until the locking component moves into the lock groove. Then, under the elastic force of the first elastic element, the locking component extends and embeds itself in the lock groove, ultimately forming a self-locking state. The door or window sash cannot be opened again by a strong wind or accidentally. At this point, the unlocking component is outside the lock groove. When the handle is turned to the locking direction, the transmission component in the hardware system synchronously drives the locking point assembly to move along the extension direction of the lock groove and away from it. At this time, the unlocking component corresponds to the blocking part of the slider, and the locking component is not restricted by the lock groove. When the handle is turned to the opening direction, the transmission component in the hardware system synchronously drives the locking point assembly to move towards the slider, causing the unlocking component to push open the slider, allowing the slider to slide away from the self-locking position on the second base. After the door or window sash is opened, the locking point assembly moves away from the door or window frame along with the door or window sash. The slider on the lock seat assembly is no longer constrained and returns to the self-locking position under the elastic force of the third elastic element.

[0010] In a preferred embodiment of this utility model, both ends of the locking member and the unlocking member are provided with guide protrusions; the cavity is provided with guide recesses corresponding to the guide protrusions, the guide recesses are connected to the cavity, and the guide protrusions are embedded in the guide recesses.

[0011] In a preferred embodiment of this utility model, both the locking member and the unlocking member have recessed holes on the side facing the cavity, and one end of the first elastic element and the second elastic element are respectively embedded in the recessed holes of the locking member and the unlocking member, while the other end abuts against the bottom surface of the cavity.

[0012] In a preferred embodiment of this utility model, one or both ends of the first base are provided with locking rods, and the locking rods are connected to the transmission assembly.

[0013] In a preferred embodiment of this utility model, a protrusion is provided on the side of the slider away from the second base, and the locking groove is provided on the protrusion; the end face of the protrusion constitutes the blocking part.

[0014] Preferably, the protrusion has a first inclined surface on both sides; the unlocking member has a second inclined surface; when the door or window sash moves in the locking direction, the second inclined surface can cooperate with the first inclined surface to guide the unlocking member to retract along the cavity.

[0015] Preferably, the third elastic element comprises two, wherein the two ends of one third elastic element act on the first end of the second base and the slider respectively, and the two ends of the other third elastic element act on the second end of the second base and the slider respectively, with the first end and the second end facing each other.

[0016] Preferably, the second base is provided with two mounting slots, and the two third elastic elements are respectively disposed in the two mounting slots; the slider is provided with two baffles on the side facing the second base, and the two baffles are respectively located in the two mounting slots.

[0017] Preferably, the second base is provided with a guide groove; the side of the slider facing the second base is provided with a guide block; the guide block passes through the guide groove and is connected to a base plate, the base plate being larger than the guide groove and capable of sliding on the side of the second base opposite to the slider. In this embodiment, the guide groove is located between two mounting grooves.

[0018] In a preferred embodiment of this utility model, a sound-silencing component is provided between the slider and both sides of the second base, which helps to prevent the slider from generating harsh noise when sliding.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The self-locking device of this utility model can automatically limit the state of the door and window sash after it is accidentally closed, effectively preventing the door and window sash from swinging back and forth, which is beneficial to protecting the door and window and its hardware system structure. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a three-dimensional structural diagram of the self-locking device of this utility model.

[0023] Figure 2 for Figure 1 Exploded view of the central locking assembly.

[0024] Figure 3 for Figure 2 A 3D view of the second base.

[0025] Figure 4 for Figure 2 A 3D view of the slider.

[0026] Figure 5 for Figure 1 Exploded view of the central locking point component.

[0027] Figure 6 for Figure 5 A three-dimensional view of the first base, locking component, and unlocking component.

[0028] Figure 7This is a schematic diagram of the locking point assembly and the locking seat assembly when the door or window sash is open.

[0029] Figure 8 This is a schematic diagram of the locking point assembly and the locking seat assembly when the door / window sash is in the self-locking state.

[0030] Figure 9 A 3D view of the locking point assembly and locking seat assembly when the door / window sash is in the self-locking state.

[0031] Figure 10 This is a schematic diagram of the locking point assembly and the locking seat assembly when the handle is rotated to the locked position.

[0032] Figure 11 This is a schematic diagram of the locking point assembly and the locking seat assembly when the handle is rotated to the open position.

[0033] Figure 12 A 3D view of the slider being opened by the unlocking mechanism.

[0034] in:

[0035] 1-Lock seat assembly, 101-Second base, 102-Slider, 103-Protrusion, 104-Lock groove, 105-Third spring, 106-Fourth spring, 107-Silent component, 108-Guide block, 109-Mounting groove, 1010-Guide groove, 1011-Base plate, 1012-Baffle plate;

[0036] 2-Locking point assembly, 201-First base, 202-Locking rod, 203-Frustum, 204-Cavity, 205-Locking component, 206-Unlocking component, 207-Guide protrusion, 208-First spring, 209-Second spring, 2010-Back plate, 2011-Guide recess, 2012-Concave hole. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] See Figures 1-12 This embodiment discloses a self-locking device, including a lock seat assembly 1 and a locking point assembly 2. The lock seat assembly 1 of this embodiment can be installed on the window frame profile, and the locking point assembly 2 of this embodiment can be installed on the window sash profile.

[0040] In this embodiment, the locking component 2 includes a first base 201, a locking member 205, and an unlocking member 206. The first base 201 has a recess 204, in which both the locking member 205 and the unlocking member 206 are slidably disposed. A first elastic element and a second elastic element are respectively provided between the locking member 205 and the first base 201, and between the unlocking member 206 and the first base 201. The elastic force of the first and second elastic elements can respectively cause the locking member 205 and the unlocking member 206 to move outwards from the recess 204. In this embodiment, the first and second elastic elements are springs, namely a first spring 208 and a second spring 209. The locking member 205 and the unlocking member 206 are arranged side-by-side along the door / window sash. The first base 201 and the handle are connected via a transmission assembly, allowing the first base 201 to reciprocate under the control of the handle. The handle, transmission assembly, etc., in this embodiment are similar to existing door and window hardware systems.

[0041] The locking assembly 1 in this embodiment includes a second base 101, a slider 102, and a third elastic element. The slider 102 is slidably disposed on the second base 101; the elastic force of the third elastic element is used to cause the slider 102 to return to the self-locking position; a locking groove 104 is provided on the side of the slider 102 away from the second base 101.

[0042] In the self-locking state, the locking member 205 is embedded in the lock groove 104, the lock groove 104 restricts the movement of the locking member 205 in the opening and closing direction, and the unlocking member 206 is located outside the lock groove 104; the handle can drive the locking point assembly 2 to move along the extension direction of the lock groove 104 to cause the locking member 205 to slide out of the lock groove 104; when the locking member 205 slides out of the lock groove 104, the unlocking member 206 corresponds to the blocking part on the slider 102.

[0043] When an open door or window sash is moved toward the locking direction by a strong wind or by accident, the locking point assembly 2 moves with the door or window sash toward the locking direction. At this time, under the influence of the slider 102, both the locking member 205 and the unlocking member 206 move into the recess 204 until the locking member 205 moves into the lock groove 104. Then, the locking member 205 extends out and is embedded in the lock groove 104 under the elastic force of the first elastic element. Finally, the locking member 205 is restricted by the lock groove 104 to form a self-locking state, and the door or window sash cannot be opened again by a strong wind or by accident. At this time, the unlocking member 206 is located outside the lock groove 104. When the handle is turned to the locking direction, the transmission component in the hardware system synchronously drives the locking point assembly 2 to move along the extension direction of the lock groove 104 and leave the lock groove 104. At this time, the unlocking member 206 corresponds to the blocking part of the slider 102, and the locking member 205 is not restricted by the lock groove 104. When the handle is turned to the opening direction, the transmission component in the hardware system synchronously drives the locking point component 2 to move closer to the slider 102, causing the unlocking component 206 to push open the slider 102, allowing the slider 102 to slide off the self-locking position on the second base 101. After the door or window sash is opened, the locking point component 2 moves away from the door or window frame along with the door or window sash, and the slider 102 on the lock base component 1 is no longer constrained, returning to the self-locking position under the elastic force of the third elastic element.

[0044] In this embodiment, both ends of the locking member 205 and the unlocking member 206 are provided with guide protrusions 103207; corresponding to the guide protrusions 103207, guide recesses 2011 are provided in the cavity 204. The guide recesses 2011 communicate with the cavity 204, and the guide protrusions 103207 are embedded in the guide recesses 2011. The provision of guide protrusions 103207 and guide recesses 2011 helps to improve the sliding and telescopic stability of the locking member 205 and the unlocking member 206 in the cavity 204. At the same time, the guide protrusions 103207 can restrict the locking member 205 and the unlocking member 206 from coming out of the cavity 204, thus playing a role in preventing them from coming out.

[0045] Furthermore, both the locking member 205 and the unlocking member 206 have recesses 2012 on their sides facing the cavity 204. One end of the first elastic element and the second elastic element are respectively embedded in the recesses 2012 of the locking member 205 and the unlocking member 206, and the other end abuts against the bottom surface of the cavity 204. Meanwhile, the back of the first base 201 in this embodiment is provided with a detachable back plate 2010, which forms the bottom surface of the cavity 204.

[0046] In this embodiment, the first base 201 has locking rods 202 at both ends, and the locking rods 202 are connected to the transmission assembly. In this embodiment, the first base 201 can be connected to the transmission assembly in both directions. In addition, the locking rods 202 in this embodiment are provided with frustums 203, which can be used to connect with the connecting rods of the transmission assembly. When the handle is rotated, the movement of the transmission assembly can drive the first base 201 to move along the extension direction of the lock groove 104, thereby controlling the locking member 205 to leave the lock groove 104 or controlling the unlocking member 206 to push open the slider 102.

[0047] In this embodiment, the slider 102 of the lock base assembly 1 has a protrusion 103 on the side away from the second base 101, and the lock groove 104 is disposed on the protrusion 103; the end face of the protrusion 103 constitutes the blocking part. Further, both sides of the protrusion 103 are provided with a first inclined surface; the unlocking member 206 is provided with a second inclined surface; when the door or window sash moves in the locking direction, the second inclined surface can cooperate with the first inclined surface to guide the unlocking member 206 to retract along the cavity 204.

[0048] In this embodiment, there are two third elastic elements. One of the third elastic elements has two ends that act on the first end of the second base 101 and the slider 102, respectively. The other third elastic element has two ends that act on the second end of the second base 101 and the slider 102, respectively. The first end and the second end are opposite to each other.

[0049] Furthermore, in this embodiment, both third elastic elements are springs, namely a third spring 105 and a fourth spring 106. The third spring 105 and the fourth spring 106 act on opposite ends of the second base 101, controlling the naturally descending slider 102 to a designated self-locking position. When the slider 102 is pushed open by the unlocking member 206 and moves in one direction, one of the springs is compressed. When the unlocking member 206 leaves the slider 102, the elastic force of the compressed spring causes the slider 102 to reset, while the other spring positions the slider 102 during its reset movement, ensuring that the slider 102 accurately resets to the designated self-locking position. Moreover, the use of a two-spring structure improves the assembly flexibility of the lock base assembly 1, making it unaffected by the installation direction.

[0050] To better install the third spring 105 and the fourth spring 106, the second base 101 is provided with two mounting grooves 109; the slider 102 is provided with two baffles 1012 on the side facing the second base 101, and the two baffles 1012 are respectively located in the two mounting grooves 109.

[0051] Furthermore, the second base 101 is provided with a guide groove 1010; the slider 102 has a guide block 108 on the side facing the second base 101; the guide block 108 passes through the guide groove 1010 and is connected to a base plate 1011, the base plate 1011 being larger than the guide groove 1010 and capable of sliding on the side of the second base 101 facing away from the slider 102. In this embodiment, the guide groove 1010 is located between two mounting grooves 109.

[0052] In this embodiment, a sound-silencing component 107 is provided between the slider 102 and both sides of the second base 101, which helps to prevent the slider 102 from generating harsh noise when sliding.

[0053] 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 self-locking device, characterized in that, Includes lock base assembly and locking point assembly; The locking point assembly includes a first base, a locking member, and an unlocking member; the first base has a cavity, and the locking member and the unlocking member can be slidably disposed in the cavity; a first elastic element and a second elastic element are respectively provided between the locking member and the first base and between the unlocking member and the first base; the elastic force of the first elastic element and the second elastic element can respectively cause the locking member and the unlocking member to move in the direction of extending out of the cavity. The locking assembly includes a second base, a slider, and a third elastic element; the slider is slidably disposed on the second base; the elastic force of the third elastic element is used to cause the slider to return to the self-locking position; a locking groove is provided on the side of the slider away from the second base; In the self-locking state, the locking member is embedded in the lock groove, the lock groove restricts the movement of the locking member in the opening and closing direction, and the unlocking member is located outside the lock groove; the handle can drive the locking point assembly to move along the extension direction of the lock groove to cause the locking member to slide out of the lock groove; when the locking member slides out of the lock groove, the unlocking member corresponds to the blocking part on the slider.

2. The self-locking device according to claim 1, characterized in that, Both ends of the locking member and the unlocking member are provided with guide protrusions; each of the cavity is provided with a guide recess corresponding to the guide protrusion, the guide recess is connected to the cavity, and the guide protrusion is embedded in the guide recess.

3. The self-locking device according to claim 1, characterized in that, Both the locking member and the unlocking member have recessed holes on their sides facing the cavity. One end of the first elastic element and the second elastic element are respectively embedded in the recessed holes of the locking member and the unlocking member, and the other end abuts against the bottom surface of the cavity.

4. The self-locking device according to any one of claims 1-3, characterized in that, The first base has a locking rod at one or both ends, and the locking rod is connected to the transmission assembly.

5. The self-locking device according to claim 1, characterized in that, The slider has a protrusion on the side away from the second base, and the locking groove is provided on the protrusion; the end face of the protrusion constitutes the blocking part.

6. The self-locking device according to claim 5, characterized in that, The protrusion has a first inclined surface on both sides; the unlocking component has a second inclined surface; when the door or window sash moves in the locking direction, the second inclined surface can cooperate with the first inclined surface to guide the unlocking component to retract along the cavity.

7. The self-locking device according to claim 1, characterized in that, The third elastic element comprises two elements, one of which has its two ends acting on the first end of the second base and the slider, respectively, and the other of which has its two ends acting on the second end of the second base and the slider, respectively, with the first end and the second end facing each other.

8. The self-locking device according to claim 7, characterized in that, The second base is provided with two mounting slots, and the two third elastic elements are respectively disposed in the two mounting slots; the slider is provided with two baffles on the side facing the second base, and the two baffles are respectively located in the two mounting slots.

9. The self-locking device according to claim 1 or 8, characterized in that, The second base is provided with a guide groove; the slider is provided with a guide block on the side facing the second base; the guide block passes through the guide groove and is connected to a base plate, the base plate is larger than the guide groove and can slide on the side of the second base away from the slider.

10. The self-locking device according to claim 1, characterized in that, The slider and the two sides of the second base are provided with sound-silencing components, which helps to prevent the slider from generating harsh noise when sliding.

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