A kind of anti-theft strip lock with simple structure

Abstract

The present invention discloses an anti-theft bar lock with a simple structure, which is provided with mutually orthogonal X direction, Y direction and Z direction; the anti-theft bar lock comprises: a lock body, the lock body is provided with a locking hole; a toggle bar, the toggle bar is provided with a toggle structure, the toggle structure is arranged corresponding to the locking hole; the toggle bar comprises: a lock seat part, the lock seat part is connected with the lock body in sliding along the X direction; the lock seat part is connected with a lock hook seat, the lock hook seat is relatively fixed with the lock seat part, and the lock hook seat is connected with a lock hook body; a locking part, the locking part is elastically connected with the lock seat part; the locking part is provided with a locking protrusion, the locking protrusion is used to abut against the wall surface of the locking hole to limit the relative position of the lock body and the toggle bar. The anti-theft bar lock has a simple structure, fewer parts, is easy to assemble, and can achieve a good anti-theft effect.

Description

Technical Field

[0001] The invention relates to the technical field of door and window accessories, in particular to an anti-theft strip lock with a simple structure. Background Art

[0002] Sliding doors and windows generally use bar locks. Most of the bar locks on the market have obvious operating sounds, loose structures, and no anti-pry function. When outdoors, the side of the door and window sash with the bar lock can be lifted to unlock the bar lock, making the locking function invalid and failing to meet the anti-theft requirements. Although some bar locks have anti-pry functions, they have many small parts and are inconvenient to assemble, which ultimately makes the bar locks inoperable and unable to lock. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an anti-theft strip lock with a simple structure to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the present invention to solve its technical problem is:

[0005] An anti-theft lock strip with a simple structure is provided with mutually orthogonal X direction, Y direction and Z direction; the anti-theft lock strip comprises:

[0006] A lock body, wherein the lock body is provided with a locking hole;

[0007] A toggle bar, wherein the toggle bar is provided with a toggle structure, and the toggle structure is arranged corresponding to the locking hole; the toggle bar comprises:

[0008] A lock seat portion, wherein the lock seat portion is slidably connected to the lock body along the X direction; the lock seat portion is connected to a lock hook seat, the lock hook seat is relatively fixed to the lock seat portion, and the lock hook seat is connected to the lock hook body;

[0009] A locking portion, the locking portion is elastically connected to the lock seat portion; the locking portion is provided with a locking protrusion, and the locking protrusion is used to abut against the wall surface of the locking lock hole to limit the relative position of the lock body and the toggle bar.

[0010] Through the above technical solution, when the anti-theft strip lock is in the locked state, the locking protrusion of the toggle bar will be stuck in the locking hole of the lock body, so that the lock hook cannot move downward without operating the toggle bar, and the anti-theft strip lock cannot be unlocked. When the toggle bar is operated to change the anti-theft strip lock from the locked state to the open state, before the operator drives the toggle bar to move downward, the locking part of the toggle bar is first pressed toward the inner side of the window sash, so that the locking protrusion of the toggle bar is separated from the hole position of the lock body. At this time, the operator can drive the toggle bar to move along the X direction, thereby driving the lock hook body to move, so that the lock hook body is separated from the locking point of the sash frame, and the anti-theft strip lock is in the open state. When the toggle bar is operated to change the anti-theft strip lock from the open state to the locked state, the locking part will reset due to the elastic force when the locking protrusion moves to the locking hole, thereby locking the hole position on the front of the lock body again.

[0011] The anti-theft strip lock has a simple structure, fewer parts, is easy to assemble, and can achieve a good anti-theft effect.

[0012] As a further improvement of the above technical solution, the lock hook seat is provided with a contact protrusion, the contact protrusion abuts against the lock body, the number of the contact protrusions is set to at least two, and the multiple line contacts are evenly arranged.

[0013] Through the above technical solution, only the contact protrusion of the lock hook seat is in contact with the lock body. When the lock hook seat and the lock body slide relative to each other, compared with the large-area contact between the two metal parts of the lock hook seat and the lock body in the past, the use of the contact protrusion may reduce the contact area between the lock hook seat and the lock body, thereby greatly reducing the friction between the lock hook seat and the lock body, and weakening the sound generated by the friction when the toggle bar and the lock body slide relative to each other, thereby achieving the effect of reducing noise or even silencing.

[0014] As a further improvement of the above technical solution, a gap is left between the side wall of the lock hook seat in the Y direction and the lock body.

[0015] Through the above technical scheme, a gap is left between the lock hook seat and the lock body, which can reduce the contact area between the lock hook seat and the lock body, so that the lock hook seat is separated from the lock body. Compared with the large-area contact between the two metal parts of the lock hook seat and the lock body in the past, this arrangement can greatly reduce the contact area between the two metal parts of the lock hook seat and the lock body, so as to reduce the sound caused by the relative sliding between the lock hook seat and the lock body, which is beneficial to improve the silent effect.

[0016] As a further improvement of the above technical solution, the toggle bar is provided with a mounting wall, the number of the mounting walls is set to at least two, at least two of the mounting walls are arranged along the Y direction, at least two of the mounting walls are respectively arranged on both sides of the lock hook seat in the Y direction, and the two end faces of the mounting wall are respectively abutted against the side wall of the lock hook seat and the side wall of the lock body.

[0017] Through the above technical solution, when the lock hook seat is installed, the installation wall can limit the installation position of the lock hook seat in the Y direction, which can avoid the trouble of adjusting the position of the lock hook seat in the Y direction during installation. This solution can keep the lock hook seat and the lock body separated. Compared with the large area contact between the two metal parts of the lock hook seat and the lock body in the past, this setting can greatly reduce the contact area between the two metal parts of the lock hook seat and the lock body, which is conducive to improving the mute effect.

[0018] As a further improvement of the above technical solution, the toggle bar is provided with a limiting wall, the number of the limiting walls is set to at least two, at least two of the limiting walls are arranged along the X direction, at least two of the limiting walls are respectively arranged on both sides of the lock hook seat in the X direction, and the end faces of the limiting walls are abutted against the side walls of the lock hook seat.

[0019] Through the above technical solution, when the lock hook seat is installed, the limiting wall can limit the installation position of the lock hook seat in the X direction, thereby avoiding the trouble of adjusting the position of the lock hook seat in the X direction during installation.

[0020] As a further improvement of the above technical solution, the lock hook seat is slidably connected to the lock hook body, and the lock hook seat and the lock hook body slide relatively along the Y direction; a threaded adjustment piece is provided between the lock hook seat and the lock hook body, and the threaded adjustment piece is provided with a rotation axis, and the rotation axis is parallel to the Y direction, and the threaded adjustment piece is rotatably connected to the lock hook seat; the threaded adjustment piece is threadedly connected to the lock hook body.

[0021] Through the above technical solution, since the lock hook body is threadedly connected to the threaded adjustment piece, when the threaded adjustment piece rotates, the threaded adjustment piece will drive the lock hook body to move along the Y direction, so that the position of the lock hook body in the Y direction can be adjusted to adapt to the locking points of different window frames.

[0022] As a further improvement of the above technical solution, the lock hook body includes a sliding member and a lock hook body, the sliding member is slidably connected to the lock hook seat, the sliding member is fixed with a limiting protrusion, the lock hook body is provided with a limiting hole, the limiting hole corresponds one-to-one to the limiting protrusion, and the sliding member is fixedly connected to the lock hook body.

[0023] Through the above technical solution, when installing the lock hook body, the limiting protrusion and the limiting hole are aligned and plugged in. The limiting protrusion and the limiting hole can position the sliding member and the lock hook body, thereby facilitating the subsequent fixing steps of the sliding member and the lock hook body and ensuring the installation quality of the lock hook body.

[0024] As a further improvement of the above technical solution, the toggle bar is provided with a first state mark and a second state mark, the first state mark and the second state mark are respectively arranged on both sides of the toggle structure, and the first state mark and the second state mark are arranged along the X direction.

[0025] Through the above technical solution, the first state mark and the second state mark are used to enable the operator to intuitively know whether the anti-theft strip lock is currently in a locked state or an open state.

[0026] As a further improvement of the above technical solution, the toggle structure is configured as a toggle groove, and both ends of the toggle groove in the X direction are provided with toggle tilt structures.

[0027] Through the above technical solution, the tilting structure can be turned to make the operator feel better.

[0028] As a further improvement of the above technical solution, the locking portion is provided with a locking hook, the locking hook is an elastic component, both ends of the locking hook in the X direction are provided with guiding inclined surfaces, and the lock body is provided with a locking protrusion, and the locking protrusion is engaged with the locking hook.

[0029] Through the above technical solution, the locking hook and the locking protrusion can prevent the toggle bar from falling due to gravity when the anti-theft bar lock is in the open state.

[0030] The beneficial effects of the present invention are as follows: the anti-theft strip lock has a simple structure, fewer parts, is easy to assemble, and can achieve a better anti-theft effect.

[0031] The invention is used in the technical field of door and window accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0033] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0034] Figure 2 is a schematic diagram of an exploded structure of an embodiment of the present invention;

[0035] Figure 3 is a schematic cross-sectional structural diagram of an embodiment of the present invention in a locked state;

[0036] Figure 4 is a schematic cross-sectional structural diagram of an embodiment of the present invention in an open state;

[0037] Figure 5 yes Figure 4 A partial enlarged schematic diagram of part A.

[0038] In the figure, 100, lock body; 110, panel; 111, locking hole; 120, sliding frame; 121, lock hook through hole; 122, locking protrusion; 123, yielding groove; 200, toggle bar; 201, first state mark; 202, second state mark; 210, lock seat; 220, locking part; 221, locking protrusion; 222, locking hook; 230, toggle groove; 231 , toggle tilt structure; 240, mounting groove; 241, limiting wall; 242, mounting wall; 300, lock hook seat; 310, adjustment groove; 311, first abutment surface; 320, contact protrusion; 400, lock hook body; 410, sliding member; 411, limiting protrusion; 412, second abutment surface; 420, lock hook body; 421, limiting hole; 500, threaded adjustment member; 510, drive hole. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0040] Reference Figures 1 to 5 The invention discloses a simple structured anti-theft bar lock, which is provided with mutually orthogonal X direction, Y direction and Z direction. The anti-theft bar lock comprises a lock body 100, a toggle bar 200, a lock hook seat 300 and a lock hook body 400.

[0041] The lock body 100 includes a panel 110 and a sliding frame 120, the panel 110 and the sliding frame 120 are fixedly connected, a sliding channel is formed between the panel 110 and the sliding frame 120, the sliding channel extends along the X direction, and both ends of the sliding channel are connected to the outside. The sliding frame 120 is provided with a lock hook through hole 121 at one end in the X direction. The panel 110 is provided with a locking hole 111, which penetrates the panel 110 along the Z direction, and the locking hole 111 is in the shape of a strip hole (in other embodiments, the locking hole 111 may also be in the shape of a rectangular hole).

[0042] The inner side wall of the sliding frame 120 is provided with a locking protrusion 122 , and both ends of the locking protrusion 122 in the X direction are provided with inclined surfaces.

[0043] The toggle bar 200 is a plastic part, and the contact surfaces of the toggle bar 200 and the lock body 100 are both smooth planes. The toggle bar 200 is arranged in the sliding channel, and the toggle bar 200 and the lock body 100 are slidingly connected along the X direction. The side wall of the toggle bar 200 abuts against the inner side wall of the sliding frame 120 and can be relatively slidably connected. The toggle bar 200 is provided with a toggle groove 230, the notch of the toggle groove 230 is away from the sliding frame 120, and the toggle groove 230 is provided with a toggle tilting structure 231 at both ends in the X direction. The toggle tilting structure 231 is provided with anti-slip grooves.

[0044] The end of the toggle bar 200 away from the sliding frame 120 is provided with a first state mark 201 and a second state mark 202, which are respectively arranged on both sides of the toggle structure in the X direction, and the first state mark 201 is a red component. The second state mark 202 is a green component. When the anti-theft strip lock is in the locked state, the user can observe the first state mark 201 from the locking hole 111, but cannot observe the second state mark 202; when the anti-theft strip lock is in the open state, the user can observe the second state mark 202 from the locking hole 111, but cannot observe the first state mark 201.

[0045] The toggle bar 200 includes a lock seat portion 210 and a locking portion 220, which are arranged along the X direction, and the lock seat portion 210 and the locking portion 220 are fixedly connected. The toggle bar 200 is made by injection molding (in other embodiments, it can also be made of other materials with a certain degree of elasticity), and the locking portion 220 can undergo elastic deformation.

[0046] The locking portion 220 is provided with a locking protrusion 221 , and the locking protrusion 221 is used to abut against the side wall of the locking hole 111 to limit the relative position of the lock body 100 and the toggle bar 200 .

[0047] The locking portion 220 is fixedly connected with a locking hook 222, and the locking hook 222 is provided with guiding inclined surfaces at both ends in the X direction. The locking hook 222 is engaged with the locking protrusion 122 to prevent the toggle bar 200 from falling due to gravity when the anti-theft bar lock is in the open state.

[0048] An installation groove 240 is provided at one end of the lock seat portion 210 corresponding to the lock hook passage hole 121, and the notch of the installation groove 240 is away from the panel 110. The two walls of the installation groove 240 in the X direction are set as limiting walls 241, and the two walls in the Y direction are set as installation walls 242. The wall surface of the limiting wall 241 and the wall surface of the installation wall 242 are perpendicular to each other.

[0049] The lock hook seat 300 is inserted into the installation groove 240. The four side walls of the lock hook seat 300 are respectively in contact with the two limiting walls 241 and the two installation walls 242. The position of the lock hook seat 300 in the X direction and the Y direction is limited by the toggle bar 200, so that the lock hook seat 300 maintains a certain gap with the inner side wall of the sliding frame 120, reducing the noise generated by the friction between the lock hook seat 300 and the sliding frame 120 when sliding.

[0050] Two contact protrusions 320 are provided at one end of the lock hook seat 300 away from the panel 110, and the contact protrusions 320 are long strip structures (in other embodiments, the number of contact protrusions 320 can be set to more than three, or the contact protrusions 320 can be set in the form of convex points or in the form of arc-shaped strip structures, so that the contact protrusions 320 are evenly distributed on the end surface of the lock hook seat 300 away from the panel 110), and the two contact protrusions 320 extend along the Y direction, and the two contact protrusions 320 are respectively arranged at both ends of the lock hook seat 300 in the X direction.

[0051] An adjustment groove 310 is provided at one end of the lock hook seat 300 away from the panel 110, and the adjustment groove 310 penetrates the lock hook seat 300 along the Y direction. The adjustment groove 310 is provided with two inclined first abutment surfaces 311, and the two first abutment surfaces 311 are arranged along the X direction and symmetrically arranged on both sides of the adjustment groove 310. The first abutment surfaces 311 and the side surfaces of the adjustment groove 310 form an angle greater than 90 degrees.

[0052] The lock hook body 400 is installed on the lock hook seat 300 . The lock hook body 400 includes a sliding member 410 and a lock hook body 420 .

[0053] The sliding member 410 is disposed in the adjusting slot 310 , and the sliding member 410 is slidably connected to the adjusting slot 310 , and the locking hook body 400 can slide relative to the adjusting slot 310 along the Y direction.

[0054] The sliding member 410 is provided with second abutting surfaces at both ends in the X direction, the second abutting surfaces correspond to the first abutting surfaces 311 one by one, and the second abutting surfaces abut against the corresponding first abutting surfaces 311. The provision of the first abutting surfaces 311 and the second abutting surfaces can improve the structural strength of the limiting structure of the adjusting groove 310 for the sliding member 410, and can reduce stress concentration, which is beneficial to improving the yield rate of the strip lock.

[0055] The end of the sliding member 410 away from the panel 110 protrudes with a limiting protrusion 411, the number of which is set to two, and the limiting protrusion 411 is cylindrical, the locking hook body 420 is provided with a limiting hole 421, the number of which is set to two, the limiting protrusion 411 and the limiting hole 421 are plugged together, the sliding member 410 and the locking hook body 420 are fixed by two screws, the two screws and the two limiting protrusions 411 are arranged in a rectangular shape, the two screws are arranged diagonally, and the two limiting protrusions 411 are also arranged diagonally. The limiting protrusion 411 and the limiting hole 421 can position the sliding member 410 and the locking hook body 420.

[0056] A threaded adjustment member 500 is provided between the sliding member 410 and the lock hook seat 300. The threaded adjustment member 500 is provided with a rotation axis, which is parallel to the Y direction. The threaded adjustment member 500 is threadedly connected to the sliding member 410, and the threaded adjustment member 500 is rotatably connected to the lock hook seat 300. The two ends of the threaded adjustment member 500 in the Y direction are respectively in contact with the two mounting walls 242. The two mounting walls 242 limit the position of the threaded adjustment member 500 in the Y direction. There is no need to set a limit structure for the threaded adjustment member 500, which makes the assembly of the anti-theft strip lock more convenient. Of course, the end face of the threaded adjustment member 500 is provided with a drive hole 510 matching the shape of a screwdriver or a hexagonal wrench, and the sliding frame 120 is provided with a clearance groove 123 for making way for the drive hole 510.

[0057] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A simple structure anti-theft bar lock, characterized by: There are mutually orthogonal X direction, Y direction and Z direction; the anti-theft strip lock includes: A lock body (100), wherein the lock body (100) is provided with a locking hole (111); A toggle bar (200), the toggle bar (200) being made of a material having a certain elasticity; the toggle bar (200) being provided with a toggle structure, the toggle structure being arranged corresponding to the locking hole (111); the toggle bar (200) comprising: A lock seat portion (210), the lock seat portion (210) being slidably connected to the lock body (100) along the X direction; the lock seat portion (210) being connected to a lock hook seat (300), the lock hook seat (300) being relatively fixed to the lock seat portion (210), and the lock hook seat (300) being connected to a lock hook body (400); a locking portion (220), the locking portion (220) being elastically deformable, the locking portion (220) being provided with a locking protrusion (221), the locking protrusion (221) being used to abut against a wall surface of the locking lock hole (111) so as to limit the relative position of the lock body (100) and the toggle bar (200); The lock hook seat (300) is provided with a plurality of contact protrusions (320), and the contact protrusions (320) abut against the lock body (100); A gap is left between the side wall of the lock hook seat (300) in the Y direction and the lock body (100); The toggle bar (200) is provided with a mounting wall (242), the number of the mounting walls (242) is set to at least two, at least two of the mounting walls (242) are arranged along the Y direction, at least two of the mounting walls (242) are respectively arranged on both sides of the lock hook seat (300) in the Y direction, and two end surfaces of the mounting wall (242) are respectively abutted against the side wall of the lock hook seat (300) and the side wall of the lock body (100).

2. The simple structure anti-theft bar lock according to claim 1, characterized in that: The toggle bar (200) is provided with a limiting wall (241), the number of the limiting walls (241) is set to at least two, at least two of the limiting walls (241) are arranged along the X direction, at least two of the limiting walls (241) are respectively arranged on both sides of the lock hook seat (300) in the X direction, and the end faces of the limiting walls (241) are in contact with the side walls of the lock hook seat (300).

3. The simple structure anti-theft bar lock according to claim 1 is characterized by: The lock hook seat (300) is slidably connected to the lock hook body (400), and the lock hook seat (300) and the lock hook body (400) slide relatively along the Y direction; a threaded adjustment member (500) is provided between the lock hook seat (300) and the lock hook body (400), and the threaded adjustment member (500) is provided with a rotation axis, and the rotation axis is parallel to the Y direction, and the threaded adjustment member (500) is rotatably connected to the lock hook seat (300); the threaded adjustment member (500) is threadedly connected to the lock hook body (400).

4. The simple structure anti-theft bar lock according to claim 1 is characterized by: The lock hook body (400) comprises a sliding member (410) and a lock hook body (420); the sliding member (410) is slidably connected to the lock hook seat (300); a limiting protrusion (411) is fixed to the sliding member (410); the lock hook body (420) is provided with a limiting hole (421); the limiting hole (421) corresponds to the limiting protrusion (411) one by one; and the sliding member (410) is fixedly connected to the lock hook body (420).

5. The simple structure anti-theft bar lock according to claim 1 is characterized by: The toggle bar (200) is provided with a first state mark (201) and a second state mark (202), the first state mark (201) and the second state mark (202) being respectively arranged on two sides of the toggle structure, and the first state mark (201) and the second state mark (202) being arranged along the X direction.

6. The simple structure anti-theft bar lock according to claim 1, characterized in that: The toggle structure is configured as a toggle groove (230), and both ends of the toggle groove (230) in the X direction are provided with toggle tilt structures (231).

7. The simple structure anti-theft bar lock according to claim 1, characterized in that: The locking portion (220) is provided with a locking hook (222), the locking hook (222) is an elastic component, and the locking hook (222) is provided with guiding inclined surfaces at both ends in the X direction. The lock body (100) is provided with a locking protrusion (122), and the locking protrusion (122) is locked with the locking hook (222).

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