CN219826527U - Safety lock for window - Google Patents

Abstract

The utility model discloses a window safety lock, which comprises a lock body and a lock seat, wherein a first lock piece and a second lock piece are respectively arranged on a lock rod of the lock body and the lock seat, the lock rod penetrates through a lock hole to enable the first lock piece and the second lock piece to be matched with each other in a concave-convex manner so as to lock a window sash, and the lock rod is a rigid rod so that the window safety lock can simultaneously play a bidirectional locking role to be used for locking the window sash in a ventilation state.

Description

Safety lock for window

Technical Field

The utility model belongs to the field of daily necessities, and particularly relates to a window safety lock for locking an opened window sash.

Background

The window is a lighting and ventilation member of a house, and the window sash can be used for indoor and outdoor ventilation after being opened, but the window is a potential safety hazard for children, and the children can open and close the window sash without permission to cause the fingers of the children to be clamped or to cause personal injury after falling. Although locking the sash to a certain extent may avoid falling or pinching, this may result in the ventilation of the window being affected.

It is therefore necessary to design a window safety lock to lock the sash in the open condition, and an adult can keep the sash in this position by opening the sash a small angle and opening the window safety lock so that the child cannot continue to rotate the sash to open or close it. For example, CN109267866a discloses a child lock for windows, which locks a window sash by a chain to prevent further opening, but which does not address the safety hazard that the window sash may be pinched by the handle; for another example, CN209457616U discloses a door and window safety lock, and the purpose of locking and adjusting the window sash can be achieved by sliding and locking the connecting piece in the guide slot, but the structure is relatively complex, the cost is high, and the suitability for inwardly opening window is also poor.

Therefore, it is necessary to adjust an entirely new safety lock for the sash locking of an inwardly opened window.

Disclosure of Invention

The utility model aims to provide a window safety lock which is novel in structure, convenient to use and suitable for locking a window sash of a window structure like an inward opening window in an opening state.

In order to achieve the above purpose, the utility model adopts the following scheme:

the safety lock for the window comprises a lock body and a lock seat, wherein the lock body and the lock seat are respectively used for being fixed on a window frame and a window sash, a lock hole which is arranged in a penetrating manner is formed in the lock seat, the lock body comprises a main body seat and a lock rod hinged with the main body seat, and the lock rod is a rigid rod; one of the lock rod and the lock seat is provided with a first locking piece which is movably arranged, the other is provided with a second locking piece, and the first locking piece is provided with a first locking piece; the lock rod is arranged in the lock hole in a penetrating way so that the first lock piece and the second lock piece are matched with each other in a concave-convex way to lock the window sash, so that the window sash is locked and kept by the window safety lock in an open state, thereby playing a ventilation role and simultaneously avoiding the opening/closing of the window sash or finger injury caused by unauthorized operation of children.

According to the window safety lock, the first locking piece is composed of the first lock tongue which is telescopically and movably arranged on the lock rod, and the second locking piece is formed on the side wall of the lock hole. The side wall includes any side wall along the axial direction of the lock rod, but is not limited to the left side wall and the right side wall, and the side wall can be any position of the lock rod adopting a cylindrical shape or the like.

According to the window safety lock, the lock seat comprises a fixed seat and a locking seat positioned at one side of the fixed seat, and the lock hole is formed in the locking seat.

According to the window safety lock, the first lock tongue is provided with the first lock block, the second lock block and the first lock piece formed between the first lock block and the second lock block, the first lock piece is a concave piece, and the second lock piece is a convex piece, so that the first lock piece and the second lock piece can be mutually and concavely clamped.

According to the window safety lock, the first locking piece and the second locking piece are respectively positioned at two ends of the first lock tongue. Where both ends are also included as being disposed adjacent both ends, and are not limited to being strictly located at both ends thereof.

According to the window safety lock, the outer side of the first locking piece is also provided with the second locking piece. The second locking piece can be used for assisting in adjusting the locking length of the lock rod when the lock seat slides along the lock rod on one hand, and can also play a secondary locking role on the other hand, namely, after the locking relation between the first locking piece and the lock seat is released, the second locking piece can act on the outer side wall of the lock seat to lock the second locking piece so as to ensure that the lock rod is not directly separated from the lock seat, so that the safety in some cases can be improved.

According to the window safety lock, the second locking piece is composed of a second lock tongue which is telescopically and movably arranged on the lock rod.

According to the window safety lock, the first locking piece, the second locking piece and the second lock tongue are respectively provided with the guide surfaces, and the guide surfaces are inclined surfaces or curved surfaces. When the lock rod penetrates into the lock hole from the inner side direction of the lock seat, the second lock tongue or the first lock tongue can retract under the guiding action of the guiding surface, so that the locking matching process of the lock rod and the lock seat is automatically completed without manually operating the first locking piece or the second locking piece; when the lock rod passes through the lock hole from the outer side direction of the lock seat, the first lock tongue can retract under the guiding action of the guiding surface so as to automatically complete locking fit.

According to the window safety lock, the side wall of the lock hole is provided with at least two second locking pieces, a locking groove is concavely formed between every two adjacent second locking pieces, and the first locking pieces are matched with different second locking pieces to adjust the locking length of the lock rod.

According to the window safety lock, the first locking piece is further arranged on the outer side of the second locking piece so as to increase the number of adjustable gears.

According to the window safety lock, two second locking pieces are arranged on the side wall of the lock hole, a locking groove is concavely formed between the two second locking pieces, and a first locking piece is arranged on the outer side of the second locking piece; the lock hole slides along the first locking piece or the second locking piece to adjust the locking length of the lock rod, and three adjusting gears are formed.

According to the window safety lock, the lock rod and the main body seat are in a multidirectional hinge structure or a universal hinge structure.

According to the window safety lock, the universal hinge structure comprises a ball head piece and a ball head cavity.

According to the window safety lock, the multidirectional hinge structure is composed of a main body connecting piece, wherein the main body connecting piece comprises a first connecting seat formed on the main body seat, a second connecting seat formed at one end of the lock rod, and a connecting piece connected between the first connecting seat and the second connecting seat; the connecting piece comprises a first connecting piece and a second connecting piece which are arranged perpendicular to each other, and the first connecting piece and the second connecting piece are respectively hinged in the first connecting seat and the second connecting seat in a rotatable mode along a hinge shaft perpendicular to the surfaces of the first connecting piece and the second connecting piece.

According to the window safety lock, the side wall of the lock rod is concavely provided with the first lock cavity and the second lock cavity, the first lock tongue and the second lock tongue are telescopically and movably arranged in the first lock cavity and the second lock cavity, and an elastic reset piece is further arranged between the first lock tongue and the second lock tongue and between the first lock tongue and the bottom wall of the first lock cavity and the bottom wall of the second lock cavity.

The beneficial effects of the utility model include:

1. the lock lever is made of a rigid rod, and can lock the bidirectional movement of the window sash after being in locking connection with the lock seat, so that the window sash can be locked to be opened or closed, and the window sash can be locked to be kept in an opened and ventilated state.

2. The locking device has the advantages of compact structure, easy assembly and use, and locking and matching can be realized by only sleeving the outer end of the locking rod into the locking hole of the lock seat so as to enable the first locking piece and the second locking piece to be matched in a concave-convex manner.

3. The engagement state between the lever and the lock hole is adjustable, so that the locking length of the lock lever can be changed by adjusting the engagement relationship between the lever and the lock hole, thereby allowing the opening angle of the window sash to be adjusted within a proper range.

4. The two lock bolts are provided with the guide surfaces facing to each other, so that the first lock piece can be automatically completed in the process of matching the second lock piece with the first lock piece, and the user does not need to press the lock bolts to operate.

5. The lock rod is hinged with the main body seat, and the matching requirements of the window sashes with different locking angles can be met through the relative pivoting of the lock rod and the main body seat. Particularly, when the universal or multidirectional hinging relation is adopted between the lock rod and the main body seat, the installation process of the lock body and the lock seat is more convenient, and meanwhile, the deviation of the lock body and the lock seat, which is caused by deformation of the window sash structure after a period of use, can be compensated.

Drawings

FIG. 1 is a schematic view of a child resistant lock in accordance with an embodiment of the present utility model;

FIG. 2 is an exploded view of the embodiment of FIG. 1, which may also be considered a schematic view of the child safety lock in an unlocked state;

FIG. 3 is a schematic view of the lock base in the embodiment of FIG. 1;

FIG. 4 is a schematic view of the structure of the lock body of the embodiment of FIG. 1;

FIG. 5 is an exploded view of the structure of FIG. 4;

fig. 6 is a schematic view of the child resistant lock of the embodiment of fig. 1 disposed on an inwardly opening window to lock it.

The lock body 10, the lock base 20, the body base 11, the lock lever 12, the first locking member 13, the second locking member 14, the body connecting member 110, the first connecting base 111, the connecting member 112, the first connecting member 113, the second connecting member 114, the second connecting base 115, the first lock cavity 121, the second lock cavity 122, the first lock tongue 130, the first lock piece 131, the second lock piece 132, the first lock piece 133, the second lock tongue 140, the third guide surface 141, the lock hole 21, the fixing base 201, the locking base 202, the extension member 203, the second lock member 211, the window frame 301, and the window sash 302.

Detailed Description

The utility model will be described in detail below with respect to certain specific embodiments thereof in order to better understand the utility model and thereby to more clearly define the scope of the utility model as claimed. It should be noted that the following description is only some embodiments of the inventive concept and is only a part of examples of the present utility model, wherein the specific direct description of the related structures is only for the convenience of understanding the present utility model, and the specific features do not naturally and directly limit the implementation scope of the present utility model. Conventional selections and substitutions made by those skilled in the art under the guidance of the inventive concept should be considered as being within the scope of the claimed utility model.

A window safety lock for securing a window sash to a window to prevent accidental falling injury or pinching of a finger by child tampering, the window safety lock being capable of holding the window sash in a predetermined open angle so that the window sash can be kept at a small opening for ventilation to prevent the child from falling or pinching of the finger.

As shown in fig. 1, the window safety lock is composed of two parts, namely a lock body 10 and a lock base 20 which can be matched with or separated from each other, wherein the lock body 10 can be generally fixed on a window frame, and the lock base 20 can be correspondingly fixed on a window sash, so as to achieve the purpose of locking the window sash when the window sash is opened. Of course, in other embodiments, the mounting positions of the lock body 10 and the lock base 20 may be reversed.

As shown in fig. 2-3, the lock base 20 is provided with a lock hole 21, and the lock hole 21 is penetratingly arranged on the lock base 20 for the lock body 10 to penetrate therethrough and be matched with the lock body for locking. In this embodiment, the lock base 20 is composed of a fixed base 201 and an extending member 203, one end of the extending member 203 is integrally formed with the fixed base 201, and the other end extends outwards to form a locking base 202, so that the fixed base 201 and the locking base 202 are located at adjacent positions on a projection in a relative position, and the locking hole 21 is penetratingly arranged on the locking base 202. In use, the fixing base 201 of the lock base 20 is fixed proximate to the edge of the window sash or the like such that the locking base 202 formed on the extension 203 extends relative to the window sash for engagement therein by the locking lever 12 of the lock body 10 to lock the window sash in a locking relationship.

As shown in fig. 2 and 4, the lock body 10 includes a body seat 11 for fixing, and a lock rod 12 connected to the body seat 11, wherein the lock rod 12 is further provided with a first locking member 13 and a second locking member 14, the second locking member 14 is located at an outer side of the first locking member 13, and the first locking member 13 is adapted to be engaged with the lock hole 21 to form a locking engagement relationship.

In this embodiment, the first locking element 13 and the second locking element 14 are movably disposed on the side wall of the lock rod 12, so as to lock or unlock the first locking element 13 and the second locking element 14 with the lock base 20 through the telescopic movement of the first locking element 13 and the second locking element 14.

As shown in fig. 5, a side wall of the lock rod 12 is concavely provided with a first lock cavity 121 and a second lock cavity 122, and a first lock tongue 130 and a second lock tongue 140 are respectively and telescopically movably arranged in the first lock cavity 121 and the second lock cavity 122 perpendicular to the side wall to form a first locking member 13 and a second locking member 14. Preferably, a return spring (not shown) is further provided between the first and second locking bolts 130 and 140 and the locking rod 12, respectively, to form an elastic return member so that they maintain a protruding trend in the absence of external force; and, a limiting block is further disposed between the first lock tongue 130 and the second lock tongue 140 and the first lock cavity 121 or the second lock cavity 122, so as to limit the telescopic movement of the first lock tongue 130 and the second lock tongue 140 in the first lock cavity 121 or the second lock cavity 122.

The first locking tongue 130 includes a first locking piece 131, a second locking piece 132, and a first locking piece 133 formed therebetween. In this embodiment, the first locking piece 131 and the second locking piece 132 are respectively located at two ends of the first lock tongue 130, the front faces of the first locking piece 131 and the second locking piece 132 are respectively formed into inclined planes which are inclined outwards, and the first locking piece 133 is a concave piece, such as a groove, formed between the first locking piece 131 and the second locking piece 132. The second locking tongue 140 is also formed with a third guide surface 141 at the front side thereof in an inclined manner.

As shown in fig. 3, two second locking pieces 211 are disposed on the side wall of the locking hole 21 of the lock base 20, the two second locking pieces 211 are respectively disposed adjacent to two ends of the locking hole 21, and a locking groove 212 is concavely formed between the two second locking pieces 211.

In the locking and matching state, the second locking piece 211 and the first locking piece 133 are mutually embedded to lock, and the first locking piece 133 is matched with different second locking pieces 211 to realize the adjustment of the locking length of the lock rod 12, so as to realize the purpose of adjusting the opening degree of different windows. The locking length of the lock lever 12 refers to the length between the second locking member 211 and the main body seat 11, and may be increased or decreased due to the first locking member 133 being engaged with the different second locking member 211.

Wherein, the locking groove 212 is used for accommodating the first locking piece 131 or the second locking piece 132 therein. For example, in the present embodiment, the second locking piece 132 is received in the locking groove 212 when the first locking piece 133 is engaged with the inner second locking piece 211, and the first locking piece 131 is received in the locking groove 212 when the first locking piece 133 is engaged with the outer second locking piece 211. In addition, in the present embodiment, a gap is formed between the first lock tongue 130 and the second lock tongue 140, so that the second lock 211 on the outer side is accommodated in the gap when the second lock 211 on the inner side is matched with the first lock 133, and the gap can be regarded as another first lock 133, that is, there are two first locks 133 respectively located between the first lock piece 131 and the second lock piece 132 and between the second lock piece 132 and the second lock tongue 140.

Of course, in other embodiments, the number of second locking elements 211 or first locking elements 133 may be further increased according to the requirement of adjusting the gear, so as to achieve a greater number of gear adjustments that can be achieved by the window safety lock. For example, a greater number of first locking pieces 133 and second locking pieces 132 are provided along the length direction of the first locking tongue 130, and the length of the second locking pieces 132 corresponds to the length of the locking groove 212.

In the present embodiment, the lock lever 12 and the main body seat 11 are formed into a multidirectional connection structure through the main body connector 110; wherein the multidirectional connection structure includes a plurality of hinge shafts, or universal joints, which are non-collinear or parallel, so that the lock lever 12 is rotatably engaged with respect to the main body seat 11 in at least two directions. Of course, in other embodiments, it is also possible that the lock lever 12 is only hinged to the main body seat 11.

As shown in fig. 5, the body coupling member 110 includes a first coupling seat 111 formed on the body seat 11, a second coupling seat 115 formed at one end of the locking lever 12, and a coupling member 112 coupled between the first coupling seat 111 and the second coupling seat 115. Wherein the link 112 includes a first link 113 and a second link 114 disposed perpendicular to each other, and the first link 113 and the second link 114 are rotatably hinged in the first link 111 and the second link 115 along hinge shafts perpendicular to surfaces thereof, respectively, so that the lock lever 12 is rotatably coupled in two perpendicular directions with respect to the main body base 11.

As shown in fig. 6, the main body seat 11 of the lock body 10 is fixed to the window frame 301, and the lock seat 20 is fixed to the window sash 302, and the fixing methods of the two may be gluing, screw fixing or hot melt fixing. When the window sash 302 needs to be fixed at a predetermined opening angle, the rear end of the lock lever 12 is inserted into the lock hole 21 of the lock base 20, and the second lock piece 211 and the first lock piece 133 are mutually embedded to lock, so that the locking length of the lock lever 12 can be adjusted by pressing the first lock tongue 130 to retract relative to the lock lever 12 when adjustment is needed. During this process, the locking lever 12 will correspondingly rotate to accommodate the mating angle with the lock base 20.

Since the front surfaces of the second locking piece 132 and the second locking tongue 140 are obliquely arranged, the locking rod 12 can be guided to be compressed after penetrating the locking hole 21 to automatically complete locking fit, and a user is required to press the first locking tongue 130 or the second locking tongue 140 during adjustment or unlocking operation.

When the window safety lock is used, the window safety lock can be automatically matched to a first locking state when the window sash is opened, namely, the second lock piece 211 on the outer side is clamped and locked in the first lock piece 133 between the first lock piece 131 and the second lock piece 132 (the first lock piece 131 is accommodated in the lock groove 212), the first lock tongue 130 can be pressed when the opening angle of the window sash 302 needs to be adjusted, and the second lock tongue 140 can be pressed when the locking of the window sash 302 needs to be released. The outer sides of the first lock tongue 130 and the second lock tongue 140 of the window safety lock are respectively provided with a guide surface formed by inclined surfaces or curved surfaces, and the guide surfaces can guide to automatically complete matching and locking when the lock hole 21 is in bidirectional displacement relative to the lock rod 12 to come into contact with the first lock tongue 130 or the second lock tongue 140.

Claims (10)

1. A window safety lock comprising a lock body (10) and a lock seat (20) for being fixed to a window frame (301) and a window sash (302), respectively, characterized in that the lock seat (20) is provided with a lock hole (21) arranged in a penetrating manner, the lock body (10) comprises a body seat (11) and a lock rod (12) hinged with the body seat (11), and the lock rod (12) is a rigid rod; one of the lock rod (12) and the lock seat (20) is provided with a first locking piece (13) which is movably arranged, the other is provided with a second locking piece (211), and the first locking piece (13) is provided with a first locking piece (133); the lock rod (12) is arranged in the lock hole (21) in a penetrating way so that the first lock piece (133) is matched with the second lock piece (211) in a concave-convex way to lock the window sash (302).

2. The window safety lock according to claim 1, characterized in that the first locking element (13) is constituted by a first bolt (130) telescopically movably arranged on the locking lever (12), the second locking element (211) being formed on a side wall of the locking hole (21); the lock seat (20) comprises a fixed seat (201) and a locking seat (202) positioned on one side of the fixed seat (201), and the lock hole (21) is arranged on the locking seat (202).

3. The window safety lock according to claim 2, wherein the first lock tongue (130) is provided with a first locking piece (131), a second locking piece (132) and a first locking piece (133) formed therebetween, the first locking piece (133) is a concave piece, and the second locking piece (211) is a convex piece.

4. A window safety lock according to claim 3, wherein the first locking piece (131) and the second locking piece (132) are respectively located at two ends of the first lock tongue (130), and the second locking piece (14) is further arranged outside the first locking piece (13).

5. The window safety lock according to claim 4, wherein the second locking element (14) is constituted by a second tongue (140) telescopically movably arranged on the locking rod (12); the first lock block (131), the second lock block (132) and the second lock tongue (140) are respectively provided with a guide surface, the second lock tongue (140) or the first lock tongue (130) is retracted under the guide action of the guide surfaces when the lock rod (12) penetrates into the lock hole (21), and the first lock tongue (130) is retracted under the guide action of the guide surfaces when the lock rod (12) penetrates out of the lock hole (21); the guide surface is an inclined surface or a curved surface.

6. The window safety lock according to any one of claims 3 to 5, wherein at least two second locking members (211) are provided on the side wall of the lock hole (21), a locking groove (212) is concavely formed between two adjacent second locking members (211), and the first locking member (133) cooperates with different second locking members (211) to adjust the locking length of the lock lever (12).

7. The window safety lock according to claim 6, wherein the second locking piece (132) is further provided with a first locking piece (133) on the outer side.

8. The window safety lock according to claim 4 or 5, wherein two second locking pieces (211) are arranged on the side wall of the lock hole (21), a locking groove (212) is concavely formed between two adjacent second locking pieces (211), and a first locking piece (133) is arranged outside the second locking piece (132); the lock hole (21) slides along the first locking piece (13) or the second locking piece (14) to adjust the locking length of the lock rod (12).

9. The window safety lock according to claim 8, characterized in that the lock lever (12) and the main body seat (11) are hinged in multiple directions or in a universal direction;

the universal hinge structure comprises a ball head piece and a ball head cavity;

the multidirectional hinge structure is composed of a main body connecting piece (110), wherein the main body connecting piece (110) comprises a first connecting seat (111) formed on a main body seat (11), a second connecting seat (115) formed at one end of a lock rod (12), and a connecting piece (112) connected between the first connecting seat (111) and the second connecting seat (115); the connecting piece (112) comprises a first connecting piece (113) and a second connecting piece (114) which are arranged perpendicular to each other, and the first connecting piece (113) and the second connecting piece (114) are respectively hinged in the first connecting seat (111) and the second connecting seat (115) along a hinge shaft perpendicular to the surfaces of the first connecting piece and the second connecting piece.

10. The window safety lock according to claim 7 or 9, wherein the side wall of the lock rod (12) is concavely provided with a first lock cavity (121) and a second lock cavity (122), and the first lock tongue (130) and the second lock tongue (140) are telescopically movably arranged in the first lock cavity (121) and the second lock cavity (122) and an elastic reset piece is further arranged between the first lock cavity (121) and the bottom wall of the second lock cavity (122).