Door and window locking device

By incorporating connecting plates, connecting grooves, springs, and rollers into the door and window sashes, the problem of existing door and window locking devices being unable to lock on horizontal tracks is solved. This enables smooth locking on any track and improves sealing and protects the locking structure.

CN224048915UActive Publication Date: 2026-03-27TIANJIN CHENXUAN DECORATION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing door and window locking devices cannot connect smoothly when the sliding window sash is in the horizontal track, and the locking components are prone to deformation, affecting the locking effect.

Method used

The structure employs a connecting plate, connecting groove, spring, support block, and roller. The door and window sashes are locked by the rollers rolling in the fixed groove and the elasticity of the spring. A locking structure is provided at the end of the sash to protect it from external forces.

Benefits of technology

It enables doors and windows to be locked smoothly on both horizontal and parallel tracks, improving the reliability and sealing of the locking mechanism and protecting the locking structure from external forces.

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Abstract

The utility model relates to the technical field of doors and windows, in particular to a door and window locking device which comprises a door and window sash A and a door and window sash B. A connecting plate is integrally formed outside the door and window sash A. A connecting groove enabling the connecting plate to enter the door and window sash A is formed in the end of the door and window sash B. A spring is welded to the interior of the connecting plate, and a supporting block is welded to one side of the spring. The inner side of the supporting block is rotationally connected with a roller rolling outside the door and window sash B. The surface of the door and window sash A is symmetrically provided with a fixing groove A and a fixing groove B which limit the supporting block, and the fixing groove A is located on the left side of the fixing groove B. Through the arrangement of the connecting plate, the connecting groove, the spring, the fixing groove A, the fixing groove B, the supporting block and the rolling wheel, the problems that when an existing door and window locking device is used, locking of door and window sashes cannot be achieved on a horizontal track, certain limitation exists, and meanwhile a locking structure outside the door and window sashes is inconvenient to protect are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to door and window technical field, concretely relates to a door and window locking device. BACKGROUND

[0002] Door and window are the components in house building, and are the important component of building, and are the device for ventilation, lighting, entrance and exit, etc., and are usually composed of frame, fan, glass, hardware, etc., have multiple functions, and mainly include ventilation, lighting, heat preservation, heat insulation, sound insulation, waterproof and fireproofing, etc.

[0003] Patent No. 202022388327.4 discloses a door and window locking device, which realizes the locking of the opening fan of the sliding window by rotating the movable assembly, overlapping the second locking part with the first locking part.

[0004] However, the existing door and window locking device uses the connection of the first locking part and the second locking part to realize the locking of the opening fan of the sliding window, but the opening fan of the sliding window has the same track and the horizontal track, and when the first opening fan and the second opening fan in the sliding window are on the horizontal track, the first locking part and the second locking part cannot be connected smoothly, which has certain limitations, and at the same time, the first locking part and the second locking part are installed outside the opening fan, and the first locking part and the second locking part are easily deformed under the action of external force, which causes the first locking part and the second locking part to be unable to be connected smoothly, and affects the locking of the opening fan of the sliding window, so a door and window locking device is set. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a door and window locking device, which solves the problem that the existing door and window locking device cannot realize the locking of the door and window fan on the horizontal track during use, has certain limitations, and is inconvenient to protect the locking structure outside the door and window fan.

[0006] The utility model solves the technical problems by adopting the technical scheme of a door and window locking device, which comprises a door and window fan A and a door and window fan B, the door and window fan A is integrally formed with a connecting plate outside, a connecting groove is formed in the end of the door and window fan B to allow the connecting plate to enter the door and window fan A, a spring is welded inside the connecting plate, a support block is welded on one side of the spring, a roller is rotatably connected to the inner side of the support block and rolls outside the door and window fan B, a fixed groove A and a fixed groove B are symmetrically formed on the surface of the door and window fan A to limit the support block, and the fixed groove A is located on the left side of the fixed groove B.

[0007] When the door leaf A and the window leaf B are on the same track, the door leaf A is pushed to move, then the connecting plate on the door leaf A enters the connecting groove opened at the end of the window leaf B, then the roller in the support block contacts the connecting groove, when the support block is extruded by the connecting groove, the spring in the connecting plate is compressed, when the roller contacts the fixed groove B on the connecting groove, the spring drives the support block to pop out, so that the support block enters the fixed groove B, thereby realizing the locking of the door leaf A and the window leaf B.

[0008] When the door leaf A and the window leaf B are on the same track, the door leaf A is pushed to move, then the connecting plate on the door leaf A enters the connecting groove opened at the end of the window leaf B, then the roller in the support block contacts the connecting groove, when the support block is extruded by the connecting groove, the spring in the connecting plate is compressed, when the roller contacts the fixed groove B on the connecting groove, the spring drives the support block to pop out, so that the support block enters the fixed groove B, thereby realizing the locking of the door leaf A and the window leaf B.

[0009] The locking structures on the door leaf A and the window leaf B are located at the ends of the door leaf A and the window leaf B, thereby facilitating protection of the locking structures.

[0010] Specifically, the door leaf B is externally screwed with a rubber strip that is tightly connected with the door leaf A.

[0011] By adopting the above technical scheme, when the door leaf B is connected with the door leaf A, the rubber strip outside the door leaf B is tightly connected with the door leaf A, thereby improving the sealing performance when the door leaf A and the door leaf B are closed.

[0012] Specifically, the connecting plate is internally and symmetrically provided with a sliding groove, and a sliding block that stabilizes movement of the support block is slidingly connected to the inner side of the sliding groove.

[0013] By adopting the above technical scheme, when the support block moves, the symmetrically welded sliding blocks outside the support block slide in the symmetrically opened sliding grooves inside the connecting plate, thereby improving the stability of movement of the support block.

[0014] Specifically, the door leaf A and the window leaf B are externally and symmetrically provided with a groove body that enables movement of the door leaf A and the window leaf B.

[0015] By adopting the above technical scheme, when the door leaf A and the window leaf B move, the door leaf A and the window leaf B slide through the externally and symmetrically opened groove body, thereby facilitating movement of the door leaf A and the window leaf B.

[0016] Specifically, the inner side dimensions of the fixed groove A and the fixed groove B are consistent with the outer side dimensions of the support block.

[0017] By adopting the technical scheme, when the supporting block enters the fixed groove A and the supporting block enters the fixed groove B, the inner side of the fixed groove A and the fixed groove B is in conformity with the outer side of the supporting block, thereby facilitating the limiting treatment of the supporting block.

[0018] The utility model discloses beneficial effect has:

[0019] (1) a door and window locking device, when door leaf A and door leaf B are on horizontal rail structure, respectively pull door leaf A and door leaf B and move, the outer connecting plate of door leaf A drives the movement of supporting block, then the roller in supporting block contacts door leaf B, and supporting block presses the spring in connecting plate, so that the spring is compressed and generates elastic force, along with the one end of connecting plate, the roller in supporting block rolls outside door leaf B, then the roller enters the fixed groove A of the door leaf B that sets up, then the spring drives supporting block and pops out, so that supporting block enters fixed groove A, thereby realizing the locking of door leaf A and door leaf B.

[0020] (2) a door and window locking device, when door leaf A and door leaf B are on the same rail structure, push door leaf A and move, then the connecting plate on door leaf A enters the connecting groove that sets up at the end of door leaf B, then the roller in supporting block contacts connecting groove, when supporting block is extruded by connecting groove, the spring in connecting plate is compressed, along with the contact of roller and fixed groove B on connecting groove, the spring drives supporting block and pops out, so that supporting block enters fixed groove B, thereby realizing the locking of door leaf A and door leaf B.

[0021] (3) a door and window locking device, the locking structure on door leaf A and door leaf B all are located at the end of door leaf A and door leaf B, thereby facilitating the protection of locking structure. DRAWINGS

[0022] The utility model is further explained in connection with the drawings and examples.

[0023] Figure 1 It is door leaf A and door leaf B horizontal rail structure schematic view of a door and window locking device of the utility model;

[0024] Figure 2 It is local structure A schematic view of a door and window locking device of the utility model;

[0025] Figure 3 It is connecting plate internal structure schematic view of a door and window locking device of the utility model;

[0026] Figure 4 It is door leaf A and door leaf B same rail structure schematic view of a door and window locking device of the utility model;

[0027] In the figure: 1, door and window leaf A; 2, door and window leaf B; 3, connecting groove; 4, rubber strip; 5, connecting plate; 6, fixed groove A; 7, roller; 8, supporting block; 9, fixed groove B; 10, sliding groove; 11, sliding block; 12, spring; 13, groove body. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0029] In order to realize the locking of door and window leaf A1 and door and window leaf B2, as an embodiment of the utility model, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the utility model discloses a door and window locking device, which comprises door and window leaf A1 and door and window leaf B2, the connecting plate 5 is integrally formed outside the door and window leaf A1, the connecting groove 3 is formed in the end of the door and window leaf B2 to allow the connecting plate 5 to enter the door and window leaf A1, the spring 12 is welded inside the connecting plate 5, and the supporting block 8 is welded on one side of the spring 12, the roller 7 is rotatably connected to the inner side of the supporting block 8 and rolls outside the door and window leaf B2, the fixed groove A 6 and the fixed groove B 9 are symmetrically formed on the surface of the door and window leaf A1 to limit the supporting block 8, and the fixed groove A 6 is located on the left side of the fixed groove B 9.

[0030] In use, when the door and window leaf A1 and the door and window leaf B2 are on the horizontal track, the door and window leaf A1 and the door and window leaf B2 are pulled to move respectively, the connecting plate 5 outside the door and window leaf A1 drives the supporting block 8 to move, then the roller 7 in the supporting block 8 contacts the door and window leaf B2, the supporting block 8 presses the spring 12 in the connecting plate 5, so that the spring 12 is compressed to generate elastic force, along with one end of the connecting plate 5, the roller 7 in the supporting block 8 rolls outside the door and window leaf B2, then the roller 7 enters the fixed groove A 6 formed on the door and window leaf B2, then the spring 12 drives the supporting block 8 to pop out, so that the supporting block 8 enters the fixed groove A 6, thereby realizing the locking of the door and window leaf A1 and the door and window leaf B2, when the door and window leaf A1 and the door and window leaf B2 are to be opened, the supporting block 8 in the fixed groove A 6 is pressed, so that the supporting block 8 presses the spring 12 in the connecting plate 5, then the supporting block 8 enters the inside of the connecting plate 5, then the door and window leaf A1 and the door and window leaf B2 are pulled, so that the door and window leaf A1 and the door and window leaf B2 are opened;

[0031] When the door leaf A1 and the door leaf B2 are on the same track, the door leaf A1 is pushed to move, and then the connecting plate 5 on the door leaf A1 enters the connecting groove 3 opened at the end of the door leaf B2, the roller 7 in the supporting block 8 is in contact with the connecting groove 3, when the supporting block 8 is extruded by the connecting groove 3, the spring 12 in the connecting plate 5 is compressed, when the roller 7 is in contact with the fixed groove B9 on the connecting groove 3, the spring 12 drives the supporting block 8 to pop out, so that the supporting block 8 enters the fixed groove B9, thereby realizing the locking of the door leaf A1 and the door leaf B2, when the door leaf A1 and the door leaf B2 are opened, the supporting block 8 in the fixed groove B9 is pressed, so that the spring 12 in the connecting plate 5 is pressed, then the door leaf A1 and the door leaf B2 are pulled to move, so that the connecting plate 5 on the door leaf A1 moves out of the connecting groove 3 opened on the door leaf B2, thereby realizing the opening of the door leaf A1 and the door leaf B2.

[0032] The locking structures on the door leaf A1 and the door leaf B2 are located at the ends of the door leaf A1 and the door leaf B2, so that the locking structures are convenient to protect.

[0033] In order to improve the sealing performance when the door leaf A1 and the door leaf B2 are closed, as shown in Figure 1 The door leaf B2 is externally screwed with a rubber strip 4 which is tightly connected with the door leaf A1.

[0034] In use, when the door leaf B2 is connected with the door leaf A1, the rubber strip 4 outside the door leaf B2 is tightly connected with the door leaf A1, so that the sealing performance when the door leaf A1 and the door leaf B2 are closed is improved.

[0035] In order to improve the stability of the movement of the supporting block 8, as shown in Figure 3 The utility model also includes that the connecting plate 5 is internally and symmetrically provided with a sliding groove 10, and a sliding block 11 which makes the movement of the supporting block 8 stable is slidably connected to the inner side of the sliding groove 10.

[0036] In use, when the supporting block 8 moves, the symmetrically welded sliding block 11 outside the supporting block 8 slides in the symmetrically opened sliding groove 10 inside the connecting plate 5, so that the stability of the movement of the supporting block 8 is improved.

[0037] In order to facilitate the movement of the door leaf A1 and the door leaf B2, as shown in Figure 1 The utility model also includes that the door leaf A1 and the door leaf B2 are externally and symmetrically provided with a groove body 13 which makes the door leaf A1 and the door leaf B2 move.

[0038] In use, when the door leaf A1 and the door leaf B2 move, the door leaf A1 and the door leaf B2 slide through the externally and symmetrically opened groove body 13, so that the movement of the door leaf A1 and the door leaf B2 is facilitated.

[0039] In order to limit the support block 8, as shown in the example, Figure 2 The utility model also includes, the inside size of fixed groove A6 and fixed groove B9 all coincide with the outside size of support block 8.

[0040] When using, when support block 8 enters fixed groove A6, support block 8 enters fixed groove B9, the inside of fixed groove A6 and fixed groove B9 all coincide with the outside of support block 8, thereby facilitating the limit of support block 8.

[0041] The utility model is in use when, when door and window leaf A1 and door and window leaf B2 are on horizontal track, respectively pull door and window leaf A1 and door and window leaf B2 and move, door and window leaf A1 external connecting plate 5 drives support block 8 to move, then the roller 7 in support block 8 contacts door and window leaf B2, support block 8 presses spring 12 in connecting plate 5, so that spring 12 compresses and generates elastic force, along with one end of connecting plate 5, the roller 7 in support block 8 rolls outside door and window leaf B2, then roller 7 enters the fixed groove A6 of the fixed groove A6 of door and window leaf B2, then spring 12 drives support block 8 and pops out, so that support block 8 enters fixed groove A6, thereby realize the locking of door and window leaf A1 and door and window leaf B2, when door and window leaf A1 and door and window leaf B2 are opened, press support block 8 in fixed groove A6, so that support block 8 presses spring 12 in connecting plate 5, then support block 8 enters the inside of connecting plate 5, then pull door and window leaf A1 and door and window leaf B2, so that the opening of door and window leaf A1 and door and window leaf B2 is realized;

[0042] When door and window leaf A1 and door and window leaf B2 are on the same track, push door and window leaf A1 and move, then connecting plate 5 on door and window leaf A1 enters the connecting groove 3 of the end of door and window leaf B2, then the roller 7 in support block 8 contacts connecting groove 3, when support block 8 is extruded by connecting groove 3, spring 12 in connecting plate 5 is compressed, along with roller 7 and fixed groove B9 on connecting groove 3 contact, spring 12 drives support block 8 and pops out, so that support block 8 enters fixed groove B9, thereby realize the locking of door and window leaf A1 and door and window leaf B2, when door and window leaf A1 and door and window leaf B2 are opened, press support block 8 in fixed groove B9, so that support block 8 presses spring 12 in connecting plate 5, then pull door and window leaf A1 and door and window leaf B2 and move, so that connecting plate 5 on door and window leaf A1 moves from the connecting groove 3 of door and window leaf B2, so that the opening of door and window leaf A1 and door and window leaf B2 is realized;

[0043] The locking structure on door and window leaf A1 and door and window leaf B2 all are located at the end of door and window leaf A1 and door and window leaf B2, thereby facilitating the protection of locking structure;

[0044] When the door and window leaf B2 is connected with the door and window leaf A1, the rubber strip 4 outside the door and window leaf B2 is tightly connected with the door and window leaf A1, so that the sealing performance when the door and window leaf A1 and the door and window leaf B2 are closed is improved;

[0045] When the supporting block 8 moves, the symmetrically welded sliding blocks 11 outside the supporting block 8 slide in the symmetrically opened sliding grooves 10 inside the connecting plate 5, so that the stability of the movement of the supporting block 8 is improved;

[0046] When the door and window leaf A1 and the door and window leaf B2 move, the door and window leaf A1 and the door and window leaf B2 slide through the symmetrically opened groove bodies 13 outside, so that the movement of the door and window leaf A1 and the door and window leaf B2 is facilitated;

[0047] When the supporting block 8 enters the fixed groove A6 and the supporting block 8 enters the fixed groove B9, the inner sides of the fixed groove A6 and the fixed groove B9 are in conformity with the outside of the supporting block 8, so that the limiting treatment of the supporting block 8 is facilitated.

[0048] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall into the scope of the utility model claimed for protection. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A door and window locking device, characterized in that, The utility model provides a door and window leaf A (1) and door and window leaf B (2) are included, door and window leaf A (1) outside integrative forming has connecting plate (5), door and window leaf B (2) end place is set up and make connecting plate (5) enter the connecting groove (3) of door and window leaf A (1) inside welding has spring (12), and spring (12) one side welding has the support block (8), the support block (8) inboard rotationally connected with the rolling of rolling wheel (7) outside door and window leaf B (2), door and window leaf A (1) surface symmetry is set up and the fixed groove A (6) and fixed groove B (9) of the support block (8) location, and fixed groove A (6) is located fixed groove B (9) left side.

2. A door and window locking device according to claim 1, characterized in that The door and window leaf B (2) is externally screwed with a rubber strip (4) closely connected with the door and window leaf A (1).

3. A door and window locking device according to claim 1, characterized in that The connecting plate (5) is internally symmetrically provided with a sliding groove (10), and the sliding groove (10) is internally slidably connected with a sliding block (11) for stably moving the support block (8).

4. A door and window locking device according to claim 1, characterized in that The door and window leaf A (1) and the door and window leaf B (2) are externally symmetrically provided with a groove body (13) for moving the door and window leaf A (1) and the door and window leaf B (2).

5. A door and window locking device according to claim 1, characterized in that The fixed groove A (6) and the fixed groove B (9) are internally sized and sized to be consistent with the outer size of the support block (8).

Citation Information

Patent Citations

  • Door and window locking device

    CN213898555U