Door and window lock and casement window

Abstract

The utility model discloses a door and window lock and lift -and -slide window. The door and window lock includes the casing, lock block subassembly and button subassembly. Lock block subassembly contains the lock block main part and lock bolt spring of sliding setting, is equipped with the lock bolt of the inclined plane and the locking portion on the lock block main part. Button subassembly contains movable button main body and button spring, and is equipped with the limiting portion that cooperates with the locking portion on the button main body. In the locking state, lock bolt spring pushes lock bolt and extends out of the casing, and the locking portion and the limiting portion are overlapped in the thickness direction, in the unlocking state, lock bolt retracts, and the limiting portion carries out the width direction's location to the locking portion. The switching of unlocking to locking can be realized through the press button operating board, and the lock block operating board can be pushed to return to the unlocking state from the locking. The utility model discloses compact structure, easy operation, stable and reliable, mainly by five main components constitute, and the assembly is convenient, and the service life is long, and effectively solved the problem of the easy failure of repeated use and the lock bolt easy to hit the frame.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a door and window lock and a pull-out window. Background Technology

[0002] In door and window hardware systems, locks are an important component, used to lock and close sliding windows. Current sliding window center locks are cumbersome to use due to frequent manual opening and closing, and are prone to accidental damage to the lock tongue and frame caused by misoperation.

[0003] For example, patent publication number CN222863086U, application date August 5, 2024, patent title is a double-pull window lock, which includes a window lock base, a window lock body and a latch. The window lock body is rotatably mounted on the mounting platform. Limiting blocks are fixedly mounted on both sides of the window lock base. The limiting blocks are located on the outside of the mounting platform. A locking block is fixedly mounted on the window lock base. Both the limiting blocks and the locking blocks are located directly below the window lock body. A lock hole is opened on the window lock body. A lock cylinder is rotatably mounted in the lock hole. A lock rod is fixedly mounted below the lock cylinder.

[0004] While the aforementioned patent documents achieve a concealed design for the limiting block and locking block, reducing the exposure of the limiting block and locking block, preventing foreign objects from entering the window lock and affecting its operation, and improving the service life of the window lock, the operation requires rotating the window lock body, making it more complicated to use, and it is even easy to be damaged due to improper operation during use. Utility Model Content

[0005] This utility model provides a door and window lock and a pull-out window, aiming to solve the problem that the pull-out window locks in the prior art are complicated to use and are easily damaged due to improper operation during use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a door and window lock, including: a housing, a lock block assembly, and a button assembly; the lock block assembly and the button assembly are both disposed on the housing; the button assembly is used to keep the lock block assembly in an unlocked state. The locking block assembly includes a locking block body slidably disposed within the housing and a locking tongue spring that pushes the locking block body to move; the locking block body is provided with a locking tongue, and the locking tongue spring pushes the locking tongue to move to the outside of the housing, so that the locking block assembly is in a locked state; The main body of the lock block is provided with a locking part that cooperates with the button assembly.

[0007] In one embodiment, the button assembly includes a button body movable along the thickness direction of the housing and a button spring that pushes the button body toward the locking part; the button body is provided with a limiting part that cooperates with the locking part.

[0008] In one embodiment, when the locking block assembly is in the locked state, the latch spring pushes the latch to move to the outside of the housing; the locking part and the limiting part overlap along the thickness direction of the housing; When the lock block assembly is in the unlocked state, the lock tongue retracts into the housing; the limiting part limits the locking part.

[0009] In one embodiment, the housing has a first through groove and a second through groove on one side in its thickness direction; The main body of the lock block is provided with a lock block operation plate that passes through the first through groove; The button body is provided with a button operation panel that passes through the second through groove.

[0010] In one embodiment, a third through groove is provided on the side wall of the housing, through which the locking tongue extends out of the outside of the housing or retracts into the inside of the housing.

[0011] In one embodiment, one end of the latch spring abuts against the inner wall of the housing, and the other end of the latch spring abuts against the main body of the lock block; the main body of the lock block is provided with two parallel baffles, and the latch spring abuts between the two baffles.

[0012] In one embodiment, the button body is provided with a button bottom hole; one end of the button spring abuts against the side wall in the thickness direction of the housing, and the other end of the button spring abuts against the button bottom hole.

[0013] In one embodiment, the housing includes a cover and a base plate that mates with the cover; the cover is provided with a plurality of positioning protrusions; and the base plate is provided with positioning through holes that mate with the plurality of positioning protrusions.

[0014] In one embodiment, the thickness of the internal space of the housing is adapted to the thickness of the locking block body.

[0015] In one embodiment, the window includes an indoor window sash and an outdoor window sash, with the aforementioned door and window lock fixedly installed on the top of the indoor window sash.

[0016] The advantages of this utility model compared with the prior art are: (1) Compact structure and easy assembly: The structure of this application is mainly composed of five parts: shell, locking tongue spring, locking block body, button body and button spring. These five parts are very quick and easy to assemble.

[0017] (2) Low operation difficulty and easy to use: When in the unlocked state, the only way to change from the unlocked state to the locked state is by pressing the button operation panel; while in the locked state, the only way to change from the locked state to the unlocked state is by pushing the lock block operation panel; and the button operation panel and the lock block operation panel can only be pushed in one direction, thereby reducing the operation difficulty and making it easy to use.

[0018] (3) Stable structure and reliable safety: Through the cooperation between the button spring, the latch spring, the button body and the lock block body, the locking part limits the limiting part in the locked state; in the unlocked state, the limiting part limits the locking part, realizing the mutual limiting of the limiting part and the locking part. The switching between the locked state and the unlocked state will only occur under the action of external force.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of a door and window lock provided for an embodiment of this utility model; Figure 2 An exploded view of a door and window lock provided for an embodiment of this utility model; Figure 3 An exploded view of a door and window lock provided as an embodiment of this utility model from another angle; Figure 4 A three-dimensional structural diagram of a door and window lock in the unlocked state with the cover removed, provided for an embodiment of this utility model; Figure 5 A top view of a door and window lock in the unlocked state, provided for an embodiment of this utility model; Figure 6 for Figure 5 A cross-sectional view along the AA direction; Figure 7 for Figure 5 Cross-sectional view along the BB direction; Figure 8 A three-dimensional structural diagram of a door and window lock in the locked state, provided for an embodiment of this utility model; Figure 9A three-dimensional structural diagram of a door and window lock in its locked state and after removing the cover, provided for an embodiment of this utility model; Figure 10 A top view of a door and window lock in the locked state, provided for an embodiment of this utility model; Figure 11 for Figure 10 A cross-sectional view along the CC direction; Figure 12 for Figure 10 A cross-sectional view along the DD direction; Figure 13 This is a partial cross-sectional view of a pull-out window provided for an embodiment of the present utility model.

[0021] Figure label: 1. Shell; 11. Cover; 111. First through groove; 112. Second through groove; 113. Third through groove; 114. Positioning protrusion; 12. Base plate; 121. Positioning hole. 2. Lock block assembly; 21. Lock block body; 211. Lock tongue; 212. Locking part; 213. Lock block operating plate; 214. Baffle; 22. Lock tongue spring. 3. Button assembly; 31. Button body; 311. Limiting part; 312. Button operation plate; 313. Button bottom hole; 32. Button spring. 4. Interior window sash; 5. Outdoor window sash; X, the width direction of the shell; Y, the length direction of the shell; Z, in the direction of shell thickness. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0024] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] Please see Figure 1-3 This utility model provides a door and window lock, including: a housing 1, a lock block assembly 2, and a button assembly 3; both the lock block assembly 2 and the button assembly 3 are disposed on the housing 1; the button assembly 3 is used to keep the lock block assembly 2 in an unlocked state; The locking block assembly 2 includes a locking block body 21 slidably disposed within the housing 1 and a latch spring 22 that pushes the locking block body 21 to move. The locking block body 21 is provided with a latch 211, and the end of the latch 211 is provided with an inclined surface. The latch spring 22 pushes the latch 211 to move to the outside of the housing 1, so that the locking block assembly 2 is in a locked state. The main body 21 of the lock block is provided with a locking part 212 that cooperates with the button assembly 3.

[0027] The structure in this application mainly consists of three parts: a housing 1, a locking block assembly 2, and a button assembly 3. The housing 1 serves as the base for mounting all components, the locking block assembly 2 is used to achieve the locked state, and the button assembly 3 is used to keep the locking block assembly 2 in the unlocked state. Specifically, the locking block assembly 2 in this embodiment mainly includes two parts: a locking block body 21 and a latch spring 22. Under the action of the latch spring 22, the latch 211 extends out of the housing 1, achieving the locking state of the locking block assembly 2. Because the locking block assembly 2 in this application has a simple structure with only two parts, the latch 211 will not break due to repeated lifting or malfunctioning during use, and it has a long service life. In addition, the operation of this application is simple and will not malfunction due to improper operation.

[0028] In this embodiment, the housing 1 has a cuboid structure, and includes a cover 11 and a base plate 12 that mates with the cover 11. The base plate 12 and the housing 1 form a cavity for mounting the lock block assembly 2 and the button assembly 3. In this embodiment, as... Figure 1As shown, the thickness direction of shell 1 is the Z direction, the width direction of shell 1 is the X direction, and the length direction of shell 1 is the Y direction.

[0029] In a further embodiment, such as Figure 2 As shown, the button assembly 3 includes a button body 31 that can move along the thickness direction of the housing 1 and a button spring 32 that pushes the button body 31 to move toward the locking part 212; the button body 31 is provided with a limiting part 311 that cooperates with the locking part 212.

[0030] When the locking block assembly 2 is in the locked state, the locking tongue spring 22 pushes the locking tongue 211 to move to the outside of the housing 1; the locking part 212 and the limiting part 311 overlap along the thickness direction of the housing 1; When the locking block assembly 2 is in the unlocked state, the locking tongue 211 retracts into the housing 1; the limiting part 311 limits the locking part 212.

[0031] In this embodiment, both the limiting part 311 and the locking part 212 are plate-shaped structures. The limiting part 311 can move along the thickness direction of the housing 1, and the latch spring 22 is set along the width direction of the housing 1, so that the locking block body 21 can move in the width direction of the housing 1. When the latch spring 22 pushes the latch 211 to the outside of the housing 1, the locking part 212 and the limiting part 311 overlap along the thickness direction of the housing 1, and the locking part 212 and the limiting part 311 do not overlap in the width direction of the housing 1; when the latch 211 retracts into the housing 1, the limiting part 311 is reset under the action of the button spring 32. At this time, the limiting part 311 and the locking part 212 overlap in the width direction of the housing 1, and the limiting part 311 limits the locking part 212, preventing the latch 211 from extending out of the outside of the housing 1.

[0032] In a further embodiment, such as Figure 2 As shown, the housing 1 has a first through groove 111 and a second through groove 112 on one side of its thickness direction; The main body 21 of the lock block is provided with a lock block operation plate 213 that passes through the first through groove 111; The button body 31 is provided with a button operation panel 312 that passes through the second through groove 112.

[0033] A third through groove 113 is provided on the side wall of the housing 1, through which the locking tongue 211 extends out of the outside of the housing 1 or retracts into the inside of the housing 1.

[0034] In this embodiment, the first through groove 111 and the third through groove 113 are respectively provided on two perpendicular side walls of the housing 1. Specifically, the first through groove 111, the second through groove 112, and the third through groove 113 are all provided on the cover 11. The first through groove 111 is larger than the cross-sectional area of ​​the lock block operating plate 213, so that the lock block operating plate 213 can move along the width direction of the housing 1. When the lock block operating plate 213 is pushed along the width direction of the housing 1 by an external force, the lock block operating plate 213 can move within the first through groove 111, driving the lock block body 21 to move along the width direction of the housing 1, thereby realizing the retraction of the lock tongue 211.

[0035] The button operation plate 312 can move in a direction perpendicular to the second through slot 112, thereby pushing the button body 31 to move in the thickness direction of the housing 1, realizing the limiting part 311 limiting and locking the locking part 212. The button spring 32 is provided on the other side of the button body 31 away from the button operation plate 312, that is, the button spring 32 and the button operation plate 312 are respectively provided on both sides of the button body 31. The button spring 32 maintains the tendency to push the button body 31 upward, so that when the locking part 212 does not overlap with the limiting part 311 in the thickness direction of the housing 1, the button body 31 can freely spring back to the top of the housing 1.

[0036] In a further embodiment, one end of the latch spring 22 abuts against the inner wall of the housing 1, and the other end of the latch spring 22 abuts against the lock block body 21; the lock block body 21 is provided with two parallel baffles 214, and the latch spring 22 abuts between the two baffles 214.

[0037] In this embodiment, the locking spring 22 abuts between two baffles 214, and the two baffles 214 can limit the locking spring 22.

[0038] In a further embodiment, such as Figure 3 As shown, the button body 31 is provided with a button bottom hole 313; one end of the button spring 32 abuts against the side wall of the housing 1 in the thickness direction, and the other end of the button spring 32 abuts against the button bottom hole 313.

[0039] In this embodiment, the button bottom hole 313 can limit the button spring 32, ensuring that the button spring 32 can abut against the inner wall of the housing 1 and the button body 31.

[0040] In a further embodiment, the thickness of the internal space of the housing 1 is adapted to the thickness of the locking block body 21.

[0041] In this embodiment, the thickness of the inner cavity of the housing 1 is adapted to the size of the main body 21 of the lock block, so that the space formed by the cooperation of the cover 11 and the base plate 12 allows the main body of the lock block to slide, thereby eliminating other structural settings and making the overall structure more compact and practical.

[0042] In a further embodiment, such as Figure 3 As shown, the cover 11 is provided with a plurality of positioning protrusions 114; the base plate 12 is provided with positioning through holes 121 that cooperate with the plurality of positioning protrusions 114.

[0043] In this embodiment, four positioning protrusions 114 are provided, which are respectively located at the four right-angle positions of the cover 11 to facilitate the positioning connection between the base plate 12 and the cover 11.

[0044] In another embodiment, such as Figure 13 As shown, this utility model embodiment also provides a pull-out window, including an indoor window sash 4 and an outdoor window sash 5, wherein the top of the indoor window sash 4 is fixedly provided with a door and window lock as described above.

[0045] The working principle of the embodiments provided by this utility model is as follows: including a locked state and an unlocked state.

[0046] (1) Unlocked state like Figures 4 to 7 As shown, at this time, the latch spring 22 is in a compressed state, and the latch 211 retracts into the housing 1. Under the force of the button spring 32, the button body 31 abuts against the top near the second through groove 112. At this time, the limiting part 311 on the button body 31 and the locking part 212 of the lock block body 21 overlap in the width direction of the housing 1. The limiting part 311 blocks and limits the locking part 212, preventing the latch 211 from extending out of the housing 1 under the action of the latch spring 22, thus maintaining the unlocked state.

[0047] (2) Locked state like Figures 8 to 12 As shown, when it is necessary to lock the pull-up window, press the button operation panel 312, causing the button body 31 to move towards the inside of the housing 1, thereby causing the limiting part 311 to move away from the second through groove 112. At this time, the limiting part 311 is offset from the locking part 212, and the locking part 212 and the limiting part 311 have no overlapping area in the width direction of the housing 1. At this time, the limiting part 311 loses its limiting effect on the locking part 212. The lock block body 21 moves towards the third through groove 113 under the push of the lock tongue spring 22, causing the lock tongue 211 to extend out of the third through groove 113. Under the action of the lock tongue spring 22, the lock tongue 211 is kept in the extended state, maintaining the locked state.

[0048] At this time, the limiting part 311 and the locking part 212 are arranged in the thickness direction of the housing 1. The locking part 212 plays a limiting role on the limiting part 311, and the button body 31 cannot move in the thickness direction of the housing 1. Even if the button operation plate 312 is pressed, it will not have any effect on the button assembly 3.

[0049] (3) Change from locked state to unlocked state When it is necessary to unlock, push the lock block operating plate 213 by hand, causing the lock block operating plate 213 to move the lock block body 21 away from the third through groove 113, thereby causing the lock tongue 211 to retract into the housing 1. After the lock tongue 211 retracts into the housing 1, the button body 31, under the force of the button spring 32, abuts against the top near the second through groove 112 again, and the limiting part 311 blocks and limits the locking part 212 again, restoring the unlocked state.

[0050] Therefore, compared with the prior art, this utility model has the following advantages: (1) Compact structure and easy assembly: The structure of this application is mainly composed of five parts: housing 1, locking tongue spring 22, locking block body 21, button body 31 and button spring 32. These five parts are very quick and easy to assemble. (2) Low operation difficulty and easy to use: When in the unlocked state, the only way to switch from the unlocked state to the locked state is by pressing the button operation plate 312; while in the locked state, the only way to switch from the locked state to the unlocked state is by pushing the lock block operation plate 213; and the button operation plate 312 and the lock block operation plate 213 can only be pushed in one direction, thereby reducing the operation difficulty and making it easy to use.

[0051] (3) Stable structure and reliable safety: Through the cooperation between the button spring 32, the locking tongue spring 22, the button body 31 and the locking block body 21, in the locked state, the locking part 212 limits the limiting part 311; in the unlocked state, the limiting part 311 limits the locking part 212, realizing the mutual limiting of the limiting part 311 and the locking part 212. The switching between the locked state and the unlocked state will only occur under the action of external force, making it very safe to use.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A door and window lock, characterized in that, include: A housing, a locking block assembly, and a button assembly; both the locking block assembly and the button assembly are disposed on the housing; the button assembly is used to keep the locking block assembly in an unlocked state. The locking block assembly includes a locking block body slidably disposed within the housing and a locking tongue spring that pushes the locking block body to move; the locking block body is provided with a locking tongue, and the locking tongue spring pushes the locking tongue to move to the outside of the housing, so that the locking block assembly is in a locked state; The main body of the lock block is provided with a locking part that cooperates with the button assembly.

2. The door and window lock according to claim 1, characterized in that, The button assembly includes a button body movable along the thickness direction of the housing and a button spring that pushes the button body to move toward the locking part; the button body is provided with a limiting part that cooperates with the locking part.

3. The door and window lock according to claim 2, characterized in that, When the locking block assembly is in the locked state, the latch spring pushes the latch to move to the outside of the housing; the locking part and the limiting part overlap along the thickness direction of the housing; When the lock block assembly is in the unlocked state, the lock tongue retracts into the housing; the limiting part limits the locking part.

4. The door and window lock according to any one of claims 1 to 3, characterized in that, The shell has a first through groove and a second through groove on one side in its thickness direction; The main body of the lock block is provided with a lock block operation plate that passes through the first through groove; The button body is provided with a button operation panel that passes through the second through groove.

5. The door and window lock according to claim 4, characterized in that, A third through groove is provided on the side wall of the housing, through which the locking tongue extends out of the outside of the housing or retracts into the inside of the housing.

6. The door and window lock according to claim 1, characterized in that, One end of the locking tongue spring abuts against the inner wall of the housing, and the other end of the locking tongue spring abuts against the main body of the locking block; the main body of the locking block is provided with two parallel baffles, and the locking tongue spring abuts between the two baffles.

7. The door and window lock according to claim 6, characterized in that, The button body is provided with a button bottom hole; one end of the button spring abuts against the side wall of the housing in the thickness direction, and the other end of the button spring abuts against the button bottom hole.

8. The door and window lock according to claim 1, characterized in that, The housing includes a cover and a base plate that mates with the cover; the cover has a plurality of positioning protrusions; the base plate has positioning through holes that mate with the plurality of positioning protrusions.

9. The door and window lock according to claim 1 or 8, characterized in that, The thickness of the internal space of the housing is adapted to the thickness of the main body of the lock block.

10. A pull-out window, characterized in that, It includes an indoor window sash and an outdoor window sash, wherein the top of the indoor window sash is fixedly provided with a door and window lock as described in any one of claims 1 to 9.

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