Door and window lock structure with good dustproof effect
By combining the design of the latch mechanism and the locking mechanism, along with aluminum alloy material and a dustproof plate, the problems of dust accumulation and deformation in traditional sliding windows are solved, achieving convenient operation and dust prevention, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIAN JINCHUAN DOOR & WINDOW HARDWARE CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional sliding window locks are prone to dust accumulation and metal hook deformation, leading to inconvenience and shortened lifespan.
A door and window lock structure including a latch mechanism and a latch mechanism was designed. It is made of aluminum alloy and combines components such as a latch block, a threaded rod, a spring, and a dustproof plate. The window can be locked and opened by rotating the handle, and the dustproof plate reduces the entry of dust.
It achieves convenient window operation and dust prevention, improves service life and simplifies the cleaning process, and the aluminum alloy material provides good rust resistance.
Smart Images
Figure CN224351752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the application field of sliding system door and window locks, specifically a door and window lock structure with good dustproof effect. Background Technology
[0002] Door and window locks are devices used to ensure the security of doors and windows. They prevent unauthorized entry through physical mechanisms such as keys, passwords, fingerprints, or other means.
[0003] Traditional sliding windows use an ear-shaped lock, which mainly consists of an ear-shaped lock body and a metal hook, respectively installed on the sides of the two windows. When the two windows slide to close, the lock body is rotated 180° to engage with the metal hook, thus closing the window.
[0004] However, this type of ear-shaped lock has a simple structure, is made of aluminum alloy, and is difficult to clean due to the presence of dust. Furthermore, the metal hook is prone to deformation when subjected to significant force. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide a door and window lock structure with good dustproof effect to solve the technical problems mentioned in the background.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a door and window lock structure with good dustproof effect, including a locking mechanism, a latch mechanism on one side of the locking mechanism, the latch mechanism including a first mounting shell, and a latch block movably mounted inside the first mounting shell, a limiting groove being formed inside the latch block, a limiting block being movably mounted inside the limiting groove, and a threaded rod being connected to one side of the limiting block, a threaded sleeve being rotatably connected inside the first mounting shell, and the threaded sleeve and the threaded rod being threadedly connected, and a handle being rotatably mounted on the side of the first mounting shell, the handle and the threaded sleeve being connected by a reduction gear set.
[0007] By adopting the above technical solution, and by combining the locking tongue mechanism and the locking mechanism, a sliding window can be fixed. The locking tongue mechanism has a simple structure and is more convenient to use. When the handle is turned downwards, the threaded rod is away from the handle. At this time, the locking tongue block extends out of the first mounting shell under the reset action of the spring and can be freely pressed and moved to push the window. The locking mechanism and the locking tongue can be directly engaged and locked. When the handle is turned upwards, the threaded rod is close to the handle and drives the limiting block to move, thereby pulling the locking tongue block to retract into the first mounting shell. At this time, the locking tongue block of the locking tongue mechanism retracts to facilitate the opening of both windows. That is, the window can be closed directly regardless of whether the handle is up or down, but the window can only be locked when the handle is down and can only be opened when the handle is up.
[0008] The present invention is further configured such that two sets of guide rods are symmetrically arranged inside the first mounting shell, and springs are sleeved on the outside of both sets of guide rods, and the two sets of guide rods and the locking tongue block are movably connected through each other.
[0009] Preferably, by providing a guide rod and a spring, the locking tongue block can be helped to reset.
[0010] The present invention is further configured such that the locking mechanism includes a second mounting shell, and the second mounting shell is hollow.
[0011] Preferably, the window can be locked by setting a hollow second mounting shell and a locking tongue block to cooperate with each other.
[0012] The present invention is further provided that a dustproof plate is rotatably connected to the side of the second mounting shell.
[0013] Preferably, a dustproof plate can be provided to reduce the amount of dust entering the second mounting housing.
[0014] The present invention is further configured such that the hollow groove size of the second mounting shell matches the locking tongue block, and the side of the locking tongue block is configured as an arc-shaped guide surface.
[0015] Preferably, the locking tongue block with an arc-shaped guide surface can be quickly fitted into the hollow groove of the second mounting shell.
[0016] The present invention is further configured such that two sets of baffles for limiting the handle are provided on the side of the first mounting shell.
[0017] Preferably, two sets of baffles are provided so that the user can turn the handle only in the up and down directions.
[0018] The present invention is further configured such that both the locking tongue mechanism and the locking buckle mechanism are made of aluminum alloy.
[0019] Preferably, by setting the locking mechanism and locking tongue mechanism made of aluminum alloy, the service life can be improved, as aluminum alloy has good rust resistance.
[0020] In summary, the present invention has the following main advantages:
[0021] 1. This utility model uses a combination of a locking tongue mechanism and a locking mechanism to fix a sliding window. The locking tongue mechanism has a simple structure and is more convenient to use. When the handle is turned downwards, the threaded rod is away from the handle. At this time, the locking tongue block extends out of the first mounting shell under the reset action of the spring and can be freely pressed and moved. When the user pushes the window, the locking mechanism and the locking tongue can be directly engaged and locked. When the handle is turned upwards, the threaded rod is close to the handle and drives the limiting block to move, thereby pulling the locking tongue block to retract into the first mounting shell. At this time, the locking tongue block of the locking tongue mechanism retracts to facilitate the opening of both windows. That is, the window can be closed directly regardless of whether the handle is up or down, but the window can only be locked when the handle is down and can only be opened when the handle is up.
[0022] 2. This utility model has a simple structure and stable operation by setting a locking mechanism with a dustproof plate. The dustproof plate can reduce the entry of dust into the interior of the second mounting shell, and the regular shape of the second mounting shell makes it easy to wipe and clean. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of the locking tongue mechanism and the locking buckle mechanism of this utility model;
[0024] Figure 2 This is a schematic diagram of the locking mechanism structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the locking tongue mechanism of this utility model;
[0026] Figure 4 This is a schematic diagram of the internal structure of the first mounting shell of this utility model;
[0027] Figure 5 This is a schematic diagram showing the distribution of the locking tongue block, limiting block, and threaded rod of this utility model.
[0028] Explanation of reference numerals in the attached figures:
[0029] 1. Locking tongue mechanism; 101. First mounting shell; 102. Guide rod; 103. Spring; 104. Locking tongue block; 105. Limiting groove; 106. Limiting block; 107. Threaded rod; 108. Threaded sleeve; 109. Handle; 110. Reduction gear set; 111. Baffle plate; 2. Locking mechanism; 201. Second mounting shell; 202. Dustproof plate. Detailed Implementation
[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0031] The embodiments of this utility model will be described below based on its overall structure.
[0032] Please see Figures 1-5 A door and window lock structure with good dustproof effect includes a locking mechanism 2, a latch mechanism 1 on one side of the locking mechanism 2, and a latch mechanism 1 including a first mounting shell 101. A latch block 104 is movably mounted inside the first mounting shell 101. A limiting groove 105 is formed inside the latch block 104, and a limiting block 106 is movably mounted inside the limiting groove 105. A threaded rod 107 is connected to one side of the limiting block 106. A threaded sleeve 108 is rotatably connected inside the first mounting shell 101, and the threaded sleeve 108 is threadedly connected to the threaded rod 107. A handle 109 is rotatably mounted on the side of the first mounting shell 101. The handle 109 and the threaded sleeve 108 are connected by a reduction gear set 110. By combining the latch mechanism 1 and the locking mechanism 2, a sliding window can be fixed. Mechanism 1 has a simple structure and is more convenient to use. When its handle 109 is turned downwards, the threaded rod 107 is in a state away from the handle 109. At this time, the locking tongue block 104 extends out of the first mounting shell 101 under the reset action of the spring 103 and can be pressed and moved freely. When the user pushes the window, the locking mechanism 2 and the locking tongue block 104 can be directly engaged and locked. When its handle 109 is turned upwards, the threaded rod 107 is close to the handle 109, which drives the limit block 106 to move, thereby pulling the locking tongue block 104 to retract into the interior of the first mounting shell 101. At this time, the locking tongue block 104 of the locking tongue mechanism 1 retracts inwards to facilitate the opening of the two windows. That is, the window can be closed directly whether the handle 109 is upwards or downwards, but the window can only be locked when the handle 109 is downwards, and the window can only be opened when the handle 109 is upwards.
[0033] Please refer to the above embodiments for further details. Figure 4 The first mounting shell 101 has two sets of guide rods 102 symmetrically arranged inside, and springs 103 are sleeved on the outside of both sets of guide rods 102. The two sets of guide rods 102 and the locking tongue block 104 are movably connected through each other. By setting the guide rods 102 and the springs 103, the locking tongue block 104 can be helped to reset.
[0034] Please refer to the above embodiments for further details. Figure 2 The locking mechanism 2 includes a second mounting shell 201, which is hollow. The window can be locked by the cooperation between the hollow second mounting shell 201 and the locking tongue block 104.
[0035] In the above embodiments, please refer to the specific examples. Figure 2A dustproof plate 202 is rotatably connected to the side of the second mounting shell 201. By setting the dustproof plate 202, dust can be reduced from entering the second mounting shell 201.
[0036] Please refer to the above embodiments for further details. Figure 3 The hollow groove of the second mounting shell 201 matches the size of the latch block 104, and the side of the latch block 104 is set as an arc-shaped guide surface. By setting the latch block 104 with an arc-shaped guide surface, it can be quickly fitted into the hollow groove of the second mounting shell 201.
[0037] Please refer to the above embodiments for further details. Figure 3 The side of the first mounting housing 101 is provided with two sets of baffles 111 for limiting the handle 109. By providing two sets of baffles 111, the user can rotate the handle 109 only in the up and down directions.
[0038] Please refer to the above embodiments for further details. Figure 1 Both the latch mechanism 1 and the locking mechanism 2 are made of aluminum alloy. By setting the locking mechanism 2 and the latch mechanism 1 to be made of aluminum alloy, the service life can be improved. Aluminum alloy has good anti-rust properties.
[0039] In practical operation, the worker first installs the latch mechanism 1 and the latch mechanism 2 into the inner side of the metal frame of the two sliding windows using screws.
[0040] When the handle 109 is turned downwards, the threaded rod 107 is in a state away from the handle 109. At this time, the locking tongue block 104 extends out of the first mounting shell 101 under the reset action of the spring 103. However, due to the space of the limiting groove 105, the locking tongue block 104 can still be pressed and retracted into the first mounting shell 101. When the user closes the window, due to the arc-shaped guide surface on the side of the locking tongue block 104, the locking tongue block 104 first retracts and then pops out and engages with the second mounting shell 201, thus completing the locking of the window.
[0041] When the handle 109 is turned upwards, the handle 109 drives the threaded sleeve 108 to rotate through the reduction gear set 110, causing the threaded rod 107 to approach the handle 109. In turn, the handle 109 pulls the limiting block 106 to approach the threaded rod 107. The movement of the limiting block 106 will pull the locking tongue block 104 to retract into the interior of the first mounting shell 101, so that the locking tongue block 104 does not lock with the locking mechanism 2. That is, whether the handle 109 is facing upwards or downwards, both windows can be closed directly. However, the two windows can only be opened when the handle 109 is facing upwards and the locking tongue block 104 is retracted into the interior of the first mounting shell 101, and the windows can only be locked when the handle 109 is facing downwards.
[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A door and window lock structure with good dustproof effect, comprising a locking mechanism (2), characterized in that: The locking mechanism (2) is provided with a locking tongue mechanism (1) on one side. The locking tongue mechanism (1) includes a first mounting shell (101), and a locking tongue block (104) is movably installed inside the first mounting shell (101). A limiting groove (105) is opened inside the locking tongue block (104), and a limiting block (106) is movably installed inside the limiting groove (105). A threaded rod (107) is connected to one side of the limiting block (106). A threaded sleeve (108) is rotatably connected inside the first mounting shell (101), and the threaded sleeve (108) and the threaded rod (107) are threadedly connected. A handle (109) is rotatably provided on the side of the first mounting shell (101). The handle (109) and the threaded sleeve (108) are connected by a reduction gear set (110).
2. The door and window lock structure with good dustproof effect according to claim 1, characterized in that: The first mounting shell (101) has two sets of guide rods (102) symmetrically arranged inside, and springs (103) are sleeved on the outside of both sets of guide rods (102). The two sets of guide rods (102) and the locking tongue block (104) are movably connected through each other.
3. The door and window lock structure with good dustproof effect according to claim 2, characterized in that: The locking mechanism (2) includes a second mounting shell (201), and the second mounting shell (201) is hollow.
4. The door and window lock structure with good dustproof effect according to claim 3, characterized in that: A dustproof plate (202) is rotatably connected to the side of the second mounting shell (201).
5. The door and window lock structure with good dustproof effect according to claim 4, characterized in that: The hollow groove size of the second mounting shell (201) matches that of the latch block (104), and the side of the latch block (104) is set as an arc-shaped guide surface.
6. The door and window lock structure with good dustproof effect according to claim 5, characterized in that: The first mounting housing (101) has two sets of baffles (111) on its side for limiting the handle (109).
7. The door and window lock structure with good dustproof effect according to claim 6, characterized in that: Both the locking tongue mechanism (1) and the locking buckle mechanism (2) are made of aluminum alloy.