Casement screen door sky magnetic attraction bolt

By designing a top and bottom magnetic latch for hinged screen doors, and using an auxiliary positioning block and positioning frame for connection, the latch can be simplified and magnetically connected, solving the problem of inconvenience in using traditional latches, improving ease of use and extending the life of the latch.

CN224107106UActive Publication Date: 2026-04-10FOSHAN WEKENA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Traditional latches need to be installed and locked in multiple locations on doors and windows, which is inconvenient to use, especially when the doors and windows are high, as users who are not tall enough need to use tools. In addition, the latch structure is easily impacted, which affects its service life.

Method used

Design a top and bottom magnetic latch for a swing screen door. It is connected to an auxiliary positioning block and a positioning frame. The magnetic insertion of the latch is controlled by a traction rope. Combined with an elastic conversion structure, it reduces the impact and achieves synchronous operation on both the top and bottom sides.

Benefits of technology

The locking process of the latch is simplified, the ease of use is improved, the impact of the latch structure is reduced, and the service life is extended.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for the technical field of bolts, and provides a vertical hinged screen door sky magnetic attraction bolt. A door and window frame; the auxiliary positioning blocks are movably installed at the upper end and the lower end of the door and window frame, second sliding grooves are formed in the surfaces of the auxiliary positioning blocks, and second sliding blocks are arranged on the auxiliary positioning blocks in a sliding mode; the inserting block is fixedly mounted at the outer end of the second sliding block; the magnet is fixedly mounted in the middle of the outer end of the insertion block; a first positioning rod and a second positioning rod. Compared with the prior art, the positioning device has the beneficial effects that when the positioning device is used, the auxiliary positioning block and the positioning frame are arranged and are connected with each other through the traction rope, so that the traction rope can be tightened and loosened through a bidirectional structure on the surface of the positioning frame; and then auxiliary positioning blocks on the upper side and the lower side are driven to be magnetically attracted, inserted, fixed and separated from inserting holes preset in a door and window frame, and the trouble caused when a traditional bolt structure is used for conducting vertical fixing is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bolt, especially relates to a top and bottom magnetic attraction bolt for flatly opening screen door. BACKGROUND

[0002] The bolt is a kind of anti-theft component for preventing door and window from being opened from outside.

[0003] When using the bolt, one bolt needs to be installed on the upper and lower part or left and right part of the door and window, and then the lock seat matched with the bolt rod is installed on the upper and lower part or left and right part of the door and window frame, so that when people want to lock the door and window, two bolts need to be locked, which is very troublesome, and when the height of the door and window is higher and the height of the user is not enough, other tools need to be used to assist the bolt, which is not convenient.

[0004] Therefore, how to provide a top and bottom magnetic attraction bolt for flatly opening screen door is a problem to be solved by the person skilled in the art. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a top and bottom magnetic attraction bolt for flatly opening screen door, which aims at solving the problems mentioned in the background art.

[0006] The utility model is realized in this way, a top and bottom magnetic attraction bolt for flatly opening screen door, comprising;

[0007] Door and window frame;

[0008] Auxiliary positioning block, the auxiliary positioning block is movably installed at the upper and lower ends of the door and window frame, and a second sliding groove is formed in the surface, and a second sliding block is slidably arranged;

[0009] Plug block, the plug block is fixedly installed at the outer end of the second sliding block;

[0010] Magnet, the magnet is fixedly installed at the middle part of the outer end of the plug block;

[0011] First positioning rod and second positioning rod, the first positioning rod and the second positioning rod are symmetrically arranged on the auxiliary positioning block and the second sliding block, and a first return spring is arranged on the surface;

[0012] Positioning frame, the positioning frame is movably installed at the middle part of the door and window frame;

[0013] Bidirectional structure, the bidirectional structure is arranged in the interior of the positioning frame;

[0014] Tow rope, the tow rope is symmetrically and staggeredly arranged at the middle part of the door and window frame, and is connected with the second sliding block and the bidirectional structure respectively.

[0015] Preferably, the outer end of the plug is also provided with an elastic conversion structure, which comprises a groove, a second movable slot, a second elastic oil pack and a first elastic oil pack, the groove is opened in the outer end of the plug, the second movable slot is opened in the inner side of the rear end of the groove, the first elastic oil pack is movably arranged in the interior of the groove, and the second elastic oil pack is movably arranged in the interior of the second movable slot, and is in fixed communication with the first elastic oil pack.

[0016] Preferably, the bidirectional structure comprises a first sliding block, a first sliding slot, a first rack, a second rack, a traction block and a transmission gear, the surface of the positioning frame is provided with a first movable slot, the first sliding block is slidably arranged on the surface of the first movable slot, the first sliding slot is symmetrically opened at the back of the positioning frame, the traction block is symmetrically slid in the interior of the first sliding slot and is movably connected with the inner end of the traction rope, the first rack is arranged on the front side of the left end traction block and is movably connected with the first sliding block, the second rack is arranged on the front side of the right end traction block, and the transmission gear is movably arranged on the surface of the positioning frame and is meshingly connected with the first rack and the second rack on both sides.

[0017] Preferably, the bottom of the first movable slot is fixedly provided with a positioning base, the front side of the lower end of the first rack is provided with a third positioning rod, the surface of the third positioning rod is sleeved with a second return spring, and is fixedly connected with the positioning base and the first rack respectively.

[0018] Preferably, the lower ends of the first rack and the second rack are arranged in a manner that the left end is lower than the right end, and the length of the first rack is greater than that of the second rack.

[0019] Preferably, when the first rack works, it moves upward, and when the second rack works, it moves downward.

[0020] Preferably, the surface of the plug is provided with a plug hole, and an auxiliary plug rod is movably arranged in the interior of the plug hole.

[0021] Compared with the prior art, the utility model has the advantages that: in use, the auxiliary positioning block and the positioning frame are connected through the traction rope, the traction rope is tightened and relaxed through the bidirectional structure on the surface of the positioning frame, and the auxiliary positioning block on the upper side and the auxiliary positioning block on the lower side are magnetically connected with the plug hole on the door and window frame, thereby avoiding the trouble caused by the traditional bolt structure when being fixed on the upper side and the lower side.

[0022] Meanwhile, the elastic conversion structure is arranged on the surface of the plug at the outer end of the auxiliary positioning block, so that when the plug is connected, the impact caused by the sudden contact is converted into expansion kinetic energy, thereby reducing the impact on the bolt structure when the plug is suddenly connected, and prolonging the service life of the bolt. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the principles of the present application, and should not be taken as limiting of the present application. In the drawings:

[0024] Figure 1 A schematic diagram of the overall appearance structure of the top-and-bottom magnetic suction latch of the horizontally-opened screen door according to an embodiment of the present application is provided.

[0025] Figure 2 A schematic diagram of the front view cross-sectional structure of the top-and-bottom magnetic suction latch of the horizontally-opened screen door according to an embodiment of the present application is provided.

[0026] Figure 3 A schematic diagram of the right view cross-sectional structure of the top-and-bottom magnetic suction latch of the horizontally-opened screen door according to an embodiment of the present application is provided.

[0027] Figure 4 A schematic diagram of the front view structure of the positioning frame of the top-and-bottom magnetic suction latch of the horizontally-opened screen door according to an embodiment of the present application is provided.

[0028] Figure 5 A schematic diagram of the rear view structure of the positioning frame of the top-and-bottom magnetic suction latch of the horizontally-opened screen door according to an embodiment of the present application is provided.

[0029] Figure 6 A schematic diagram of the position structure of the first rack, the second rack and the transmission gear of the top-and-bottom magnetic suction latch of the horizontally-opened screen door according to an embodiment of the present application is provided.

[0030] Figure 7 A schematic diagram of the A part structure of the top-and-bottom magnetic suction latch of the horizontally-opened screen door according to an embodiment of the present application is provided. Figure 3

[0031] In the drawings: 1 - door and window frame, 2 - positioning frame, 3 - first movable slot, 4 - first sliding block, 5 - first sliding slot, 6 - first rack, 7 - second rack, 8 - traction block, 9 - traction rope, 10 - auxiliary positioning block, 11 - second sliding block, 12 - insertion block, 13 - second sliding slot, 14 - first positioning rod, 15 - second positioning rod, 16 - first return spring, 17 - magnet, 18 - auxiliary insertion rod, 19 - transmission gear, 20 - third positioning rod, 21 - second return spring, 22 - positioning base, 23 - groove, 24 - second movable slot, 25 - second elastic oil pack, 26 - first elastic oil pack, 27 - insertion hole. DETAILED DESCRIPTION

[0032] ​In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will make further detailed description to the utility model by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0033] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0034] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , it is a structure schematic diagram of a flat opening screen door earth-magnetic attraction latch provided by an embodiment of the utility model, comprising:

[0035] A door and window frame 1;

[0036] An auxiliary positioning block 10 movably installed at the upper and lower ends of the door and window frame 1, and a second sliding groove 13 is formed on the surface of the auxiliary positioning block 10, and a second sliding block 11 is slidably arranged;

[0037] A plug block 12 fixedly installed at the outer end of the second sliding block 11;

[0038] A magnet 17 fixedly installed at the middle part of the outer end of the plug block 12;

[0039] A first positioning rod 14 and a second positioning rod 15, the first positioning rod 14 and the second positioning rod 15 are symmetrically arranged on the auxiliary positioning block 10 and the second sliding block 11, and a first return spring 16 is arranged on the surface of the first positioning rod 14 and the second positioning rod 15;

[0040] A positioning frame 2 movably installed at the middle part of the door and window frame 1;

[0041] A bidirectional structure arranged in the interior of the positioning frame 2;

[0042] A traction rope 9 symmetrically and staggeredly arranged at the middle part of the door and window frame 1, and connected with the second sliding block 11 and the bidirectional structure respectively.

[0043] In the embodiment of the utility model, when in use, the auxiliary positioning block 10 is installed at the upper and lower ends of the door and window frame 1, then the positioning frame 2 is installed at the middle part of the door and window frame 1, and the auxiliary positioning block 10 and the positioning frame 2 are communicated, and the traction rope 9 is connected with each other, then the bidirectional structure is used to control the tension of the traction rope 9, and then under the action of the first return spring 16, the second sliding block 11 pushes out the plug block 12 outwardly, and the magnet 17 in the middle part of the plug block 12 is magnetically attracted;

[0044] By setting the auxiliary positioning block 10 and the positioning frame 2, and by the traction rope 9, the two are connected with each other, and then the traction rope 9 can be tightened and loosened through the bidirectional structure of the surface of the positioning frame 2, and then the upper and lower auxiliary positioning blocks 10 are driven to be magnetically inserted and fixed with the insertion holes pre-set on the door and window frame and separated, thereby avoiding the trouble caused by the traditional bolt structure when being fixed up and down.

[0045] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 7 indicated, as a preferred embodiment of the utility model, the outer end of the plug block 12 is further provided with an elastic conversion structure, the elastic conversion structure comprises a groove 23, a second movable slot 24, a second elastic oil bag 25 and a first elastic oil bag 26, the groove 23 is opened in the outer end of the plug block 12, the second movable slot 24 is opened in the inner side of the rear end of the groove 23, the first elastic oil bag 26 is movably arranged in the interior of the groove 23, the second elastic oil bag 25 is movably arranged in the interior of the second movable slot 24, and is fixedly communicated with the first elastic oil bag 26.

[0046] In the embodiment of the utility model, when in use, the first elastic oil bag 26 in the groove 23 at the top end edge of the plug block 12 is in contact with the structure of the predetermined position, so that the first elastic oil bag 26 is compressed and shrunk, and then the second elastic oil bag 25 is expanded in the second movable slot 24.

[0047] And by setting the elastic conversion structure, the impact generated by sudden contact can be converted into the kinetic energy of expansion, thereby reducing the impact on the bolt structure when suddenly inserting, so that the service life of the bolt can be maintained.

[0048] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 indicated, as a preferred embodiment of the utility model, the bidirectional structure comprises a first sliding block 4, a first sliding slot 5, a first rack 6, a second rack 7, a traction block 8 and a transmission gear 19, the surface of the positioning frame 2 is provided with a first movable slot 3, the first sliding block 4 is slidably arranged on the surface of the first movable slot 3, the first sliding slot 5 is symmetrically opened in the back of the positioning frame 2, the traction block 8 is symmetrically slid in the interior of the first sliding slot 5 and is movably connected with the inner end of the traction rope 9, the first rack 6 is arranged on the front side of the left end traction block 8 and is movably connected with the first sliding block 4, the second rack 7 is arranged on the front side of the right end traction block 8, the transmission gear 19 is movably installed on the surface of the positioning frame 2 and is meshingly connected with the first rack 6 and the second rack 7 on both sides.

[0049] In the embodiment of the utility model, when using, the first sliding block 4 is moved downward along the first movable slot 3 on the surface of the positioning frame 2, then the first rack 6 is moved downward, and the second rack 7 on the other side is indirectly moved upward through the transmission gear 19, thereby the traction block 8 on the rear side of the two is slid in the first sliding groove 5 on the back of the positioning frame 2, so that the traction rope 9 changes from the tight state to the relaxed state.

[0050] By setting the bidirectional structure, the working state of the traction rope 9 can be controlled, then the working state of the auxiliary positioning block 10 on the upper and lower sides can be conveniently controlled synchronously, thereby the purpose of the heaven and earth magnetic attraction locking is realized.

[0051] As shown in Figure 3 and Figure 6 , as a preferred embodiment of the utility model, the first movable slot 3 is fixedly installed with a positioning base 22 at the bottom, the front side of the lower end of the first rack 6 is provided with a third positioning rod 20, the surface of the third positioning rod 20 is sleeved with a second return spring 21, and the third positioning rod 20 and the first rack 6 are fixedly connected with the positioning base 22 respectively.

[0052] In the embodiment of the utility model, when the magnet 17 is disconnected with the corresponding slot structure, under the action of the second return spring 21, the third positioning rod 20 is moved downward, then the first rack 6 is moved downward, then the bidirectional structure is quickly reset, the locking of the door and window frame 1 is released, the manual pulling distance is avoided to be insufficient, the residual is avoided to exist, and the situation that the door and window frame 1 cannot be opened is avoided to occur.

[0053] As shown in Figure 6 , as a preferred embodiment of the utility model, the lower end of the first rack 6 and the second rack 7 is low on the left and high on the right, and the length value of the first rack 6 is greater than the length value of the second rack 7.

[0054] In the embodiment of the utility model, when using, by making the lower end of the first rack 6 and the second rack 7 low on the left and high on the right, and making the length value of the first rack 6 greater than the length value of the second rack 7, the opposite movement of the first rack 6 and the second rack 7 is facilitated.

[0055] As shown in Figure 6 , as a preferred embodiment of the utility model, when the first rack 6 works, it moves upward, and when the second rack 7 works, it moves downward.

[0056] In the embodiment of the utility model, when using, by making the first rack 6 work to move upward and the second rack 7 work to move downward, when the first rack 6 moves, the second rack 7 is driven to move in the opposite direction, thereby facilitating the heaven and earth locking.

[0057] As shown inFigure 1 and Figure 2 As shown in the figure, as a preferred embodiment of the utility model, the surface of the plug block 12 is provided with a socket 27, and the inside of the socket 27 is movably installed with an auxiliary plug rod 18.

[0058] In the embodiment of the utility model, when in use, the socket 27 is arranged on the surface of the plug block 12, thereby facilitating the plug-in fixing of other structures, and the auxiliary plug rod 18 is movably installed in the socket 27, thereby being capable of being plugged into the structure with holes, so that the plug-in fixing effect is further improved.

[0059] In the above embodiment of the utility model, a flat-opening screen door heaven and earth magnetic suction latch is provided, when in use, the auxiliary positioning block 10 is installed at the upper and lower ends of the door and window frame 1, then the positioning frame 2 is installed at the middle part of the door and window frame 1, and the auxiliary positioning block 10 and the positioning frame 2 are communicated and connected with each other by the traction rope 9;

[0060] When in use, the first sliding block 4 is moved downward along the first movable slot 3 on the surface of the positioning frame 2, thereby driving the first rack 6 to move downward, and indirectly driving the second rack 7 on the other side to move upward through the transmission gear 19, thereby driving the traction blocks 8 on the rear sides of the two to slide in the first sliding groove 5 on the two sides of the back of the positioning frame 2, so that the traction rope 9 changes from the tight state to the relaxed state;

[0061] Then, under the action of the first reset spring 16 in the auxiliary positioning block 10, the second sliding block 11 moves from inside to outside along the second sliding groove 13, thereby causing the plug block 12 to be pushed out, so as to be plugged into and fixed with the structure installed at the predetermined position, and the magnet 17 in the middle part of the plug block 12 is magnetically attracted to the structure installed at the predetermined position, thereby causing the second sliding block 11 to overcome the elasticity of the second reset spring 21 on the surface of the third positioning rod 20 on the front side of the first rack 6, so that the second sliding block 11 is not easy to shrink, thereby avoiding the decrease of the fixing effect;

[0062] When the plug block 12 is plugged into and fixed with the structure installed at the predetermined position, the first elastic oil bag 26 in the top edge groove 23 will be in contact with the structure installed at the predetermined position, so that the first elastic oil bag 26 is compressed and shrunk, thereby causing the second elastic oil bag 25 to expand in the second movable slot 24, converting the impact generated by the sudden contact into the kinetic energy of expansion, thereby reducing the impact of the sudden plugging on the latch structure, so that the service life of the latch is maintained.

[0063] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A horizontal opening screen door earth magnetic attraction latch, characterized in that, Include; Door and window frame (1); Auxiliary positioning block (10), the auxiliary positioning block (10) is movably mounted at the upper and lower ends of the door and window frame (1), and a second sliding groove (13) is formed on the surface, and a second sliding block (11) is slidably arranged; Plug-in block (12), the plug-in block (12) is fixedly installed at the outer end of the second sliding block (11); Magnet (17), the magnet (17) is fixedly installed at the middle of the outer end of the plug-in block (12); First positioning rod (14) and second positioning rod (15), the first positioning rod (14) and the second positioning rod (15) are symmetrically arranged on the auxiliary positioning block (10) and the second sliding block (11), and a first reset spring (16) is arranged on the surface; Positioning frame (2), the positioning frame (2) is movably mounted at the middle of the door and window frame (1); Bidirectional structure, the bidirectional structure is arranged inside the positioning frame (2); Tow rope (9), the tow rope (9) is symmetrically and staggeredly arranged at the middle of the door and window frame (1), and is respectively connected with the second sliding block (11) and the bidirectional structure.

2. The magnetic plug-in bolt for horizontal opening screen door according to claim 1, wherein, The outer end of the plug-in block (12) is further provided with an elastic conversion structure, the elastic conversion structure comprises a groove (23), a second movable slot (24), a second elastic oil bag (25) and a first elastic oil bag (26), the groove (23) is formed at the outer end of the plug-in block (12), the second movable slot (24) is formed at the inner side of the rear end of the groove (23), the first elastic oil bag (26) is movably arranged in the groove (23), and the second elastic oil bag (25) is movably arranged in the second movable slot (24), and is in fixed communication with the first elastic oil bag (26).

3. The magnetic plug-in bolt for horizontal sliding screen door according to claim 1, wherein, The bidirectional structure comprises a first sliding block (4), a first sliding groove (5), a first rack (6), a second rack (7), a traction block (8) and a transmission gear (19), the surface of the positioning frame (2) is provided with a first movable slot (3), the first sliding block (4) is slidably arranged on the surface of the first movable slot (3), the first sliding groove (5) is symmetrically and staggeredly formed on the back of the positioning frame (2), the traction block (8) is symmetrically and staggeredly slid in the first sliding groove (5), and is movably connected with the inner end of the tow rope (9), the first rack (6) is arranged on the front side of the left end traction block (8), and is movably connected with the first sliding block (4), the second rack (7) is arranged on the front side of the right end traction block (8), the transmission gear (19) is movably installed on the surface of the positioning frame (2), and the two sides are respectively meshed with the first rack (6) and the second rack (7).

4. The magnetic plug-in bolt for horizontal sliding screen door according to claim 3, wherein, The bottom of the first movable slot (3) is fixedly installed with a positioning base (22), the front side of the lower end of the first rack (6) is provided with a third positioning rod (20), the surface of the third positioning rod (20) is sleeved with a second reset spring (21), and is fixedly connected with the positioning base (22) and the first rack (6) respectively.

5. The magnetic plug-in bolt for sliding screen door according to claim 3, wherein, The lower ends of the first rack (6) and the second rack (7) are arranged from low left to high right, and the length value of the first rack (6) is greater than that of the second rack (7).

6. The magnetic plug-in bolt for horizontal sliding screen door according to claim 3, wherein, The first rack (6) moves upward in operation, and the second rack (7) moves downward in operation.

7. The magnetic plug-in bolt for horizontal sliding screen door according to claim 1, wherein, The surface of the plug block (12) is provided with a plug hole (27), and an auxiliary plug rod (18) is movably installed in the plug hole (27).