Waterproof and antirust door and window lock

Through the innovative design of the limiting and moving mechanism, the problem of unstable locking of waterproof and rustproof door and window locks has been solved, achieving stable locking and simplifying installation and maintenance, thereby improving locking reliability and service life.

CN224064105UActive Publication Date: 2026-03-31宁波宏钜五金实业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing waterproof and rustproof door and window locks are insufficient in terms of locking stability. The lock tongue is easily dislodged by external impact, causing the doors and windows to open unexpectedly, which poses a safety hazard.

Method used

A limiting mechanism and a moving mechanism were designed. Through the combination of a self-weight buckle, a rotating part, a limiting part, a fixed block, a locking frame and a locking insert, the elastic force of the limiting spring is used to achieve precise locking. Combined with the precise adaptation of the locking moving frame, the locking reliability is improved.

Benefits of technology

It achieves stable locking of door and window locks, reduces moisture and air intrusion, lowers the risk of accidental opening, improves the reliability and service life of the lock, and simplifies the installation and maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of door and window locks, and discloses a waterproof rust-proof door and window lock which comprises a limiting mechanism and a moving mechanism, the limiting mechanism comprises a first installation back plate and a fixing block, and through the arranged limiting mechanism, a self-weight buckle piece is connected with a limiting piece through a rotating piece and can slide on the outer wall of the fixing piece; by means of the design, when the door and window lock is operated, the limiting piece can flexibly rotate, the position is adjusted according to actual requirements, a user can conveniently open and close a door and window, meanwhile, the fixing block is connected with the locking frame and the locking insertion block through the fixing rod, and the limiting spring is connected to the outer wall of the fixing rod in a sleeving mode. The locking insertion block can be accurately inserted into the clamping groove in the left side face of the self-weight buckle under the elastic force effect of the limiting spring, firm locking is achieved, the locking mode is high in stability, accidental unlocking caused by external force impact is not likely to happen, the overall structural design is compact and reasonable, all parts are in close fit, and the invasion path of water and air is reduced.
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Description

Technical Field

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

[0002] Door and window locks are a common component. They are installed on doors or windows, and the door or window frame has components that work in conjunction with the locks. Through their cooperation, the door or window can be locked onto the door or window frame. Door and window locks typically use a mechanical transmission structure inside. The locks achieve a tight lock by the cooperation and action of the various internal components.

[0003] Existing waterproof and rustproof door and window locks have significant shortcomings in terms of locking stability. Common traditional locks mostly rely on the simple insertion of the bolt into the latch to achieve locking. When faced with external impacts, such as strong winds hitting the doors and windows, the bolt is very likely to disengage from the latch, causing the doors and windows to open unexpectedly and posing a safety hazard. Therefore, we propose a waterproof and rustproof door and window lock. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof and rustproof door and window lock to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and rustproof door and window lock, comprising a limiting mechanism and a moving mechanism. The limiting mechanism includes a first mounting back plate and a fixing block. The first mounting back plate is connected to a self-weight buckle via a fixing member. The self-weight buckle is connected to a limiting member via a rotating member. The fixing block is connected to a locking frame and a locking insert via a fixing rod. A limiting spring is sleeved on the outer wall of the fixing rod.

[0006] As a preferred embodiment, the fixing member is fixedly installed on the surface of the first mounting back plate near the upper end, the self-weight buckle is slidably connected to the outer wall of the fixing member, the left side of the self-weight buckle is provided with a slot, the rotating member is fixedly installed on the surface of the self-weight buckle, and the upper end of the limiting member is rotatably connected to the outer wall of the rotating member.

[0007] As a preferred embodiment, the fixing block is fixedly installed on the surface of the first mounting back plate near the left side, the fixing rod is fixedly installed on the right side of the fixing block, the locking frame is slidably connected to the outer wall of the fixing rod, and the two ends of the limiting spring are respectively fixedly installed on the outer walls of the fixing block and the locking frame.

[0008] As a preferred embodiment, the locking block is fixedly installed on the upper surface of the locking frame, and the size of the locking block is adapted to the size of the slot.

[0009] As a preferred embodiment, the moving mechanism includes a second mounting back plate, on which two sets of fixing brackets are fixedly mounted near the lower end of the surface of the second mounting back plate. Each of the two sets of fixing brackets has a sliding groove inside. A sleeve is fixedly mounted near the right side of the surface of the second mounting back plate. A moving rod is slidably connected inside the sleeve. A locking moving bracket is fixedly mounted on the left end of the moving rod.

[0010] As a preferred embodiment, the right end of the locking moving frame is provided with an adapter groove, the size of which is adapted to the sleeve. Sliding blocks are fixedly installed on both the upper and lower surfaces of the locking moving frame, and the sliding blocks are slidably connected inside the sliding groove. A locking groove is provided on the surface of the locking moving frame near the left side, and the size of the locking groove is adapted to the lower end of the self-weight buckle.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. Through the setting of the limiting mechanism, the self-weight buckle is connected to the limiting part through the rotating part and can slide on the outer wall of the fixed part. This design allows the limiting part to rotate flexibly when operating the door and window lock, and adjust its position according to actual needs, making it convenient for users to open and close the door and window. At the same time, the fixed block is connected to the locking frame and the locking plug through the fixed rod. The limiting spring is sleeved on the outer wall of the fixed rod. When the door and window need to be opened, the locking plug can be accurately inserted into the slot on the left side of the self-weight buckle under the elastic force of the limiting spring, so as to achieve a firm lock. Moreover, this locking method has high stability and is not easy to be accidentally unlocked due to external impact. The overall structure design is compact and reasonable, and the components are closely matched, reducing the intrusion path of moisture and air.

[0013] 2. Through the set moving mechanism, when the locking operation is performed, the locking moving frame can accurately move to the predetermined position. The locking groove opened on its surface near the left side is precisely matched with the lower end of the self-weight buckle, so that the locking block can be inserted into the slot more smoothly to achieve a firm lock. This further improves the locking reliability of the door and window lock and reduces the risk of doors and windows being opened accidentally due to inaccurate locking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the door and window lock closing according to this utility model;

[0015] Figure 2 A schematic diagram showing the opening of the door and window according to this utility model;

[0016] Figure 3 This is one of the partial structural schematic diagrams of the limiting mechanism of this utility model;

[0017] Figure 4 This is a second schematic diagram of a partial structure of the limiting mechanism of this utility model;

[0018] Figure 5 This is one of the partial structural schematic diagrams of the moving mechanism of this utility model;

[0019] Figure 6 This is the second partial structural schematic diagram of the moving mechanism of this utility model.

[0020] In the diagram: 1. Limiting mechanism; 101. First mounting back plate; 102. Fixing component; 103. Self-weight buckle component; 104. Rotating component; 105. Limiting component; 106. Fixing block; 107. Fixing rod; 108. Limiting spring; 109. Locking frame; 110. Locking insert; 111. Slot; 2. Moving mechanism; 201. Second mounting back plate; 202. Fixing frame; 203. Sliding groove; 204. Sleeve; 205. Moving rod; 206. Locking moving frame; 207. Sliding block; 208. Adaptor groove; 209. Locking groove. Detailed Implementation

[0021] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1:

[0023] Please see the appendix Figure 1 - Appendix Figure 4A waterproof and rustproof door and window lock includes a limiting mechanism 1 and a moving mechanism 2. The limiting mechanism 1 includes a first mounting back plate 101 and a fixing block 106. The first mounting back plate 101 is connected to a self-weight latching member 103 via a fixing member 102. The self-weight latching member 103 is connected to a limiting member 105 via a rotating member 104. The fixing block 106 is connected to a locking frame 109 and a locking insert 110 via a fixing rod 107. A limiting spring 108 is sleeved on the outer wall of the fixing rod 107. The fixing member 102 is fixedly installed on the surface of the first mounting back plate 101 near the upper end. The self-weight latching member 103 is slidably connected to the outer wall of the fixing member 102. A slot 111 is provided on the left side of 03. The rotating part 104 is fixedly installed on the surface of the self-weight buckle 103. The upper end of the limiting part 105 is rotatably connected to the outer wall of the rotating part 104. The fixing block 106 is fixedly installed on the surface of the first mounting back plate 101 near the left side. The fixing rod 107 is fixedly installed on the right side of the fixing block 106. The locking frame 109 is slidably connected to the outer wall of the fixing rod 107. The two ends of the limiting spring 108 are respectively fixedly installed on the outer walls of the fixing block 106 and the locking frame 109. The locking insert 110 is fixedly installed on the upper surface of the locking frame 109. The size of the locking insert 110 is adapted to the size of the slot 111.

[0024] The limiting mechanism 1 is made of a material with excellent waterproof and rustproof properties, ensuring the durability of the door and window lock in humid environments. This significantly extends the lock's lifespan, reduces the frequency of replacement due to rust and damage, and lowers operating costs. The first mounting backplate 101 connects to other components via fasteners 102. This modular installation design allows for simple installation; simply fix the first mounting backplate 101 to the corresponding position on the door or window, and then connect the other components sequentially. This simplifies operation, reduces installation difficulty, and saves installation time. In terms of later maintenance, if a component malfunctions, such as the self-weighting buckle 103 or the locking bracket 109, its clear connection method allows for easy disassembly and replacement, improving maintenance efficiency.

[0025] Specifically, the self-weight buckle 103 is connected to the limiting member 105 via the rotating member 104 and can slide on the outer wall of the fixing member 102. This design allows the limiting member 105 to rotate flexibly when operating the door and window lock, adjusting its position according to actual needs, making it convenient for users to open and close the door and window. At the same time, the fixing block 106 is connected to the locking frame 109 and the locking insert 110 via the fixing rod 107. The limiting spring 108 is sleeved on the outer wall of the fixing rod 107. When the door and window need to be opened, the locking insert 110 can be accurately inserted into the slot 111 on the left side of the self-weight buckle 103 under the elastic force of the limiting spring 108, achieving a firm lock.

[0026] Example 2:

[0027] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 5 and attached Figure 6 Furthermore, based on Embodiment 1, the moving mechanism 2 includes a second mounting back plate 201. Two sets of fixing brackets 202 are fixedly installed on the surface of the second mounting back plate 201 near the lower end. Each of the two sets of fixing brackets 202 has a sliding groove 203 inside. A sleeve 204 is fixedly installed on the surface of the second mounting back plate 201 near the right side. A moving rod 205 is slidably connected inside the sleeve 204. A locking moving frame 206 is fixedly installed on the left end of the moving rod 205. An adapter groove 208 is opened on the right end of the locking moving frame 206. The size of the adapter groove 208 is adapted to the sleeve 204. Sliding blocks 207 are fixedly installed on both the upper and lower surfaces of the locking moving frame 206. The sliding blocks 207 are slidably connected inside the sliding groove 203. A locking groove 209 is opened on the surface of the locking moving frame 206 near the left side. The size of the locking groove 209 is adapted to the lower end of the self-weight buckle 103.

[0028] When it is necessary to open or close doors and windows, users only need to gently push the locking moving bracket 206 to activate the associated locking structure. This makes the operation more effortless and is especially suitable for some heavier doors and windows. It effectively reduces the user's operating burden and improves the flexibility and convenience of opening and closing doors and windows.

[0029] Specifically, when the locking operation is performed, the locking moving bracket 206 can move accurately to the predetermined position. The locking groove 209 opened on its surface near the left side is precisely matched with the lower end of the self-weight buckle 103, so that the locking block 110 can be inserted into the slot 111 more smoothly to achieve a firm lock. This further improves the locking reliability of the door and window lock and reduces the risk of doors and windows being opened accidentally due to inaccurate locking.

[0030] Working principle of this utility model: This utility model is a waterproof and rustproof door and window lock. When locking, the locking moving bracket 206 is slid to the left along the direction of the fixed bracket 202, so that the moving rod 205 slides out along the sleeve 204. The locking moving bracket 206 pushes the locking bracket 109 to slide to the left along the fixed rod 107, compressing the limiting spring 108, so that the locking insert 110 disengages from the slot 111 of the self-weight buckle 103. Under its own weight, the self-weight buckle 103 slides downward along the fixed member 102 until it is inserted into the locking groove 209. Inside, the limiting member 105 is rotated along the rotating member 104 until the limiting member 105 is fastened to the outer wall of the locking moving frame 206, thus completing the locking. When it is necessary to open, the limiting member 105 is fastened off the locking moving frame 206, and then the self-weight buckle 103 slides upward along the fixing member 102. The locking frame 109 moves to the right under the action of the limiting spring 108 until the locking insert 110 is inserted into the inside of the slot 111. The locking moving frame 206 is then moved to the right until the sleeve 204 is inserted into the adapter slot 208, thus completing the unlocking.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof and rustproof door and window lock comprising a limiting mechanism (1) and a moving mechanism (2), characterized in that: The limiting mechanism (1) comprises a first mounting back plate (101) and a fixed block (106), the first mounting back plate (101) is connected with a deadweight buckle (103) through a fixing piece (102), the deadweight buckle (103) is connected with a limiting piece (105) through a rotating piece (104), the fixed block (106) is connected with a locking rack (109) and a locking plug block (110) through a fixed rod (107), and the outer wall of the fixed rod (107) is sleeved with a limiting spring (108).

2. A water-proof and rust-proof door and window lock according to claim 1, characterized in that: The fixing piece (102) is fixedly installed on the surface of the first mounting back plate (101) near the upper end position, the deadweight buckle (103) is slidably connected to the outer wall of the fixing piece (102), a clamping groove (111) is formed in the left side surface of the deadweight buckle (103), and the rotating piece (104) is fixedly installed on the surface of the deadweight buckle (103).

3. A water-proof and rust-proof door and window lock according to claim 2, characterized in that: The fixed block (106) is fixedly installed on the surface of the first mounting back plate (101) near the left side position, the fixed rod (107) is fixedly installed on the right side surface of the fixed block (106), the locking rack (109) is slidably connected to the outer wall of the fixed rod (107), and the two ends of the limiting spring (108) are fixedly installed on the outer walls of the fixed block (106) and the locking rack (109) respectively.

4. A water-proof and rust-proof door and window lock according to claim 3, characterized in that: The locking plug block (110) is fixedly installed on the upper surface of the locking rack (109), and the size of the locking plug block (110) is matched with the size of the clamping groove (111).

5. A water-proof and rust-proof door and window lock according to claim 1, characterized in that: The moving mechanism (2) comprises a second mounting back plate (201), two groups of fixing racks (202) are fixedly installed on the surface of the second mounting back plate (201) near the lower end position, sliding grooves (203) are formed in the interiors of the two groups of fixing racks (202), a sleeve (204) is fixedly installed on the surface of the second mounting back plate (201) near the right side position, a moving rod (205) is slidably connected to the interior of the sleeve (204), and a locking moving rack (206) is fixedly installed on the left end of the moving rod (205).

6. A water-proof and rust-proof door and window lock according to claim 5, characterized in that: An adaptive groove (208) is formed in the right end of the locking moving rack (206), the size of the adaptive groove (208) is matched with the size of the sleeve (204), sliding blocks (207) are fixedly installed on the upper and lower surfaces of the locking moving rack (206), the sliding blocks (207) are slidably connected to the interiors of the sliding grooves (203), a locking groove (209) is formed in the surface of the locking moving rack (206) near the left side position, and the size of the locking groove (209) is matched with the size of the lower end of the deadweight buckle (103).