Adjustable door holder

The adjustable door latch design utilizes a swing arm with a rotating wheel and threaded connection to achieve forward and backward movement and rotation, solving the problem of poor flexibility and adaptability caused by the height difference between the door and the mounting surface, and providing a stable connection and convenient operation.

CN224107103UActive Publication Date: 2026-04-10GUANGZHOU LETAIJIA E-COMMERCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Traditional door latches have fixed protruding parts and base designs, which cannot adapt to the height difference between the door and the mounting surface, resulting in poor flexibility and adaptability.

Method used

It adopts an adjustable latch design, including a first base, a second base, a connecting component and a swing arm. The swing arm can move back and forth and rotate through a wheel and threaded connection. Combined with a positioning mechanism of spring and ball bearing, it ensures a stable connection.

Benefits of technology

It achieves flexible adaptability of the door latch when facing height differences, ensures stable connection and long-term durability, reduces shaking and loosening, and improves the convenience of operation.

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    Figure CN224107103U_ABST
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Abstract

The utility model relates to the field of adjustable door holders, in particular to an adjustable door holder which comprises a first base, a second base, a connecting assembly and a swing arm. Due to the fact that the rotating wheel is in threaded connection with the swing arm and arranged in the shifting groove, the rotating wheel is shifted to rotate in different directions, and the swing arm can move front and back relative to the first base. The connecting piece is connected with the limiting piece, so that the connecting piece is installed on the first base, and the swing arm and the connecting piece synchronously rotate by clamping the limiting convex strip in the limiting groove; the shifting bead is extruded through the spring, so that the shifting bead is embedded into the arc groove, positioning of the connecting piece is achieved, and the swing arm and the first limiting hook are stably connected. The problems that an existing door holder cannot be suitable for the height difference between a door and an installation face, and flexibility and adaptability are poor are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to adjustable door buckle technical field, especially a kind of adjustable door buckle. BACKGROUND

[0002] Door buckle is used to ensure that door can be firmly locked when closing, and the traditional door buckle is usually composed of two bases, one of which is fixed on the mounting surface such as door frame or wall, and is provided with a recess, and the other is fixed on the edge of the door, and is provided with a protruding part. When the door is closed, the protruding part enters the recess to achieve the locking effect. This design is simple and effective, and is widely used in residential, commercial buildings and other places. However, due to the difference in building structure and the error that may occur during the installation of door frame, there may be a slight difference in height between different doors.

[0003] However, the protruding part and the base of most door buckles are relatively fixed in design, and the protruding part can only rotate or stretch. If the height of the two bases is directly adjusted, the protruding part cannot be connected with the recess, which leads to the failure of the door buckle to work normally. The above-mentioned door buckle structure has the problems of poor flexibility and adaptability.

[0004] Therefore, there is an urgent need for an adjustable door buckle that can be applied to the difference in height between the door and the mounting surface. CONTENT OF THE UTILITY MODEL

[0005] To solve the problem that the existing door buckle cannot be applied to the difference in height between the door and the mounting surface, and has poor flexibility and adaptability.

[0006] The utility model provides an adjustable door buckle, which comprises a first base provided with a first limiting hook, a second base, a connecting assembly and a swing arm. The second base is provided with a mounting groove and a guide groove that are in communication with each other. A spring and a rotating bead are arranged in the guide groove. One end of the spring abuts against the guide groove, and the other end of the spring is connected with the rotating bead. The connecting assembly comprises a limiting sheet, a connecting piece and a rotating wheel. The limiting sheet is located on one side of the mounting groove. One end of the connecting piece is provided with a cylindrical protrusion. The other end of the connecting piece is provided with a slot. A rotating slot is arranged in the middle part of the connecting piece and is in communication with the slot. The protrusion is connected with the mounting groove and the limiting sheet through the slot. The protrusion is provided with a plurality of arc grooves. A limiting protrusion is arranged in the slot. The rotating wheel is installed in the rotating slot, and the middle part of the rotating wheel is provided with a thread. One end of the swing arm is provided with a threaded rod and a limiting groove. The threaded rod is inserted into the slot and is connected with the rotating wheel through the thread. The limiting protrusion is clamped in the limiting groove. The other end of the swing arm is rotatably connected with the first limiting hook.

[0007] Preferably, the arc grooves are four in number, and are arranged in a ring shape at equal intervals along the outer surface of the protrusion.

[0008] Preferably, the protrusion is provided with a threaded hole, the threaded hole is provided with a protrusion on both sides, the limiting sheet is provided with a limiting hole, the protrusion is inserted into the limiting hole, and the protrusion and the limiting sheet are fixedly connected by penetrating the limiting hole and the threaded hole with a bolt.

[0009] Preferably, one side of the first base is provided with a first bottom plate, the first bottom plate is provided with a first connecting hole, the first base is provided with a first connecting groove, and the first bottom plate and the first base are fixedly connected by penetrating the first connecting hole and the first connecting groove with a bolt; one side of the second base is provided with a second bottom plate, the second bottom plate is provided with a second connecting hole, the second base is provided with a second connecting groove, and the second bottom plate and the second base are fixedly connected by penetrating the second connecting hole and the second connecting groove with a bolt.

[0010] Preferably, the first base and the first bottom plate are both provided with a third connecting hole, the first base and the first bottom plate are fixedly connected by penetrating the third connecting hole with a bolt, the second base and the second bottom plate are both provided with a fourth connecting hole, and the second base and the second bottom plate are fixedly connected by penetrating the fourth connecting hole with a bolt.

[0011] Preferably, the free end of the swing arm is provided with a second limiting hook, and the second limiting hook can be locked with the first limiting hook.

[0012] Preferably, the first limiting hook is provided with an opening facing downward.

[0013] Preferably, the swing arm is provided with anti-skid lines.

[0014] Due to the threaded connection between the rotating wheel and the swing arm, and the rotating wheel being arranged in the interior of the pushing groove, the rotating wheel can be rotated in different directions by being pushed, and the front and back movement of the swing arm relative to the first base can be realized. The connecting piece is arranged on the first base by the connection of the connecting piece and the limiting sheet, the limiting convex strip is clamped in the limiting concave groove, the synchronous rotation of the swing arm and the connecting piece is realized, the swing arm and the first limiting hook are stably connected by the spring extruding the pushing ball and embedding the pushing ball in the circular arc concave groove, the positioning of the connecting piece is realized. The swing arm and the first base are connected by arranging the limiting sheet, the connecting piece and the rotating wheel, the front and back movement of the swing arm relative to the first base is realized, and the rotation and positioning functions of the swing arm are realized. The problem that the existing door catch cannot be applied to the height difference between the door and the mounting surface and has poor flexibility and adaptability is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the adjustable door catch.

[0016] Figure 2 It is an exploded view of the adjustable door catch.

[0017] Figure 3 It is a rear view of the adjustable door catch (the first bottom plate and the second bottom plate are hidden).

[0018] Figure 4 A sectional view of the adjustable door buckle provided by the utility model.

[0019] Figure 5 A perspective view of the connecting piece provided by the utility model.

[0020] Figure 6 One of the plan views of the adjustable door buckle provided by the utility model.

[0021] Figure 7 The second plan view of the adjustable door buckle provided by the utility model.

[0022] In the figure: 1 - first base; 11 - first limit hook; 12 - first bottom plate; 121 - first connecting hole; 13 - first connecting groove; 14 - third connecting hole; 2 - second base; 21 - mounting groove; 22 - guide groove; 221 - spring; 222 - push bead; 23 - second bottom plate; 231 - second connecting hole; 24 - second connecting groove; 25 - fourth connecting hole; 3 - connecting assembly; 31 - limit sheet; 311 - limit hole; 32 - connecting piece; 321 - protrusion; 322 - insertion slot; 323 - push slot; 324 - circular arc recess; 325 - limit protruding strip; 326 - threaded hole; 327 - protruding block; 33 - rotating wheel; 4 - swing arm; 41 - threaded rod; 42 - limit recess; 43 - second limit hook. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0024] Reference Figures 1-7The adjustable door buckle comprises a first base 1 provided with a first limiting hook 11, a second base 2, a connecting assembly 3 and a swing arm 4. The second base 2 is provided with a mounting groove 21 and a guide groove 22 which are communicated with each other, the guide groove 22 is provided with a spring 221 and a push bead 222, one end of the spring 221 abuts against the guide groove 22, and the other end of the spring 221 is connected with the push bead 222. The connecting assembly 3 comprises a limiting sheet 31, a connecting piece 32 and a rotating wheel 33, the limiting sheet 31 is located at one side of the mounting groove 21, one end of the connecting piece 32 is provided with a cylindrical protrusion 321, the other end of the connecting piece 32 is provided with a slot 322, the middle part of the connecting piece 32 is provided with a push groove 323 which is communicated with the slot 322, the protrusion 321 penetrates through the mounting groove 21 and is connected with the limiting sheet 31, the protrusion 321 is provided with a plurality of arc grooves 324, the slot 322 is provided with a limiting protrusion 325, the rotating wheel 33 is installed in the push groove 323, and the middle part of the rotating wheel 33 is provided with a screw thread. One end of the swing arm 4 is provided with a threaded rod 41 and a limiting groove 42, the threaded rod 41 is inserted into the slot 322 and is threadedly connected with the rotating wheel 33, the limiting protrusion 325 is clamped in the limiting groove 42, and the other end of the swing arm 4 is rotatably connected with the first limiting hook 11.

[0025] Due to the threaded connection between the rotating wheel 33 and the swing arm 4, and the rotating wheel 33 being arranged in the push groove 323, the rotating wheel 33 is rotated in different directions by being pushed, and the swing arm 4 can be moved forward and backward relative to the first base 1. The connecting piece 32 is installed on the first base 1 by the connection of the connecting piece 32 and the limiting sheet 31, the swing arm 4 and the connecting piece 32 are synchronously rotated by the limiting protrusion 325 being clamped in the limiting groove 42, the connecting piece 32 is positioned by the spring 221 extruding the push bead 222 and the push bead 222 being embedded in the arc grooves 324, and the swing arm 4 is stably connected with the first limiting hook 11. The swing arm 4 and the first base 1 are connected by arranging the limiting sheet 31, the connecting piece 32 and the rotating wheel 33, the swing arm 4 can be moved forward and backward relative to the first base 1, and the swing arm 4 can be rotated and positioned. The problem that the existing door buckle cannot be applied to the door and the mounting surface with height difference and has poor flexibility and adaptability is solved.

[0026] In some embodiments, with reference to Figure 5 The arc grooves 324 are four in number and are arranged in a ring shape at equal intervals along the outer surface of the protrusion 321.

[0027] The connecting piece 32 is synchronously rotated with the swing arm 4 due to the spring 221 extruding the push bead 222, the push bead 222 is embedded in the arc grooves 324 with the rotation of the connecting piece 32, a stable positioning effect is provided, each arc groove 324 is an adjustment gear, a larger adjustment range and higher flexibility are provided by arranging four arc grooves 324, the swing arm 4 is positioned by the push bead 222 every 90 degrees of rotation, and the connecting piece 32 is prevented from being accidentally rotated.

[0028] Reference Figure 1 , assuming that when the free end of the swing arm 4 is inserted into the first limit hook 11 to the right, the rotation angle of the swing arm 4 is 0°, then the swing arm 4 can rotate 90°, 180° and 270° clockwise, so as to realize the separation of the swing arm 4 and the first limit hook 11.

[0029] In some embodiments, referring to Figure 5 , the protrusion 321 is provided with a threaded hole 326, and the two sides of the threaded hole 326 are provided with a protruding block 327, referring to Figure 2 , the limiting sheet 31 is provided with a limiting hole 311, referring to Figure 4 , the protruding block 327 is inserted into the limiting hole 311, and the protrusion 321 and the limiting sheet 31 are fixedly connected by a bolt passing through the limiting hole 311 and the threaded hole 326.

[0030] The protruding block 327 is inserted into the limiting hole 311, which plays a limiting role, not only ensures that the connecting piece 32 maintains the correct alignment position during installation, but also realizes the synchronous rotation of the connecting piece 32 and the limiting sheet 31. In addition to the bolt fixation, the protruding block 327 is inserted into the limiting hole 311, which increases an additional locking point and further enhances the stability of the connection.

[0031] In some embodiments, referring to Figures 2-3 , one side of the first base 1 is provided with a first bottom plate 12, the first bottom plate 12 is provided with a first connecting hole 121, the first base 1 is provided with a first connecting groove 13, and the first bottom plate 12 and the first base 1 are fixedly connected by a bolt passing through the first connecting hole 121 and the first connecting groove 13; one side of the second base 2 is provided with a second bottom plate 23, the second bottom plate 23 is provided with a second connecting hole 231, the second base 2 is provided with a second connecting groove 24, and the second bottom plate 23 and the second base 2 are fixedly connected by a bolt passing through the second connecting hole 231 and the second connecting groove 24.

[0032] The first bottom plate 12 is connected to the installation surface such as a door or a wall surface by glue, so as to fix the first base 1, the second bottom plate 23 is connected to the edge of the door by glue, so as to fix the second bottom plate 23, the second bottom plate 23 and the second base 2 are fixedly connected by a bolt passing through the second connecting hole 231 and the second connecting groove 24, so as to realize the packaging of the limiting sheet 31, the spring 221 and the push bead 222 inside the second base 2.

[0033] Preferably, referring to Figures 2-3 , the first base 1 and the first bottom plate 12 are both provided with a third connecting hole 14, and the first base 1 and the first bottom plate 12 are fixedly connected by a bolt passing through the third connecting hole 14, the second base 2 and the second bottom plate 23 are both provided with a fourth connecting hole 25, and the second base 2 and the second bottom plate 23 are fixedly connected by a bolt passing through the fourth connecting hole 25.

[0034] The first base 1 and the first bottom plate 12 are fixedly connected together on the mounting surface such as a door frame or a wall body through the third connecting hole 14 threaded by a bolt, so that the first base 1 and the first bottom plate 12 are conveniently aligned and disassembled; the second base 2 and the second bottom plate 23 are fixedly connected together on the mounting surface such as a door frame or a wall body through the fourth connecting hole 25 threaded by a bolt, so that the second base 2 and the second bottom plate 23 are conveniently aligned and disassembled.

[0035] In some embodiments, with reference to Figures 1-2 The free end of the swing arm 4 is provided with a second limiting hook 43, which can be locked with the first limiting hook 11.

[0036] The second limiting hook 43 ensures tight closure when the door is closed, reduces shaking and loosening, and maintains long-term stability and durability.

[0037] In some embodiments, the first limiting hook 11 is arranged with an opening downward.

[0038] The swing arm 4 can be rotated to open and close from below, optimizing the use experience of the door catch and improving the operation convenience.

[0039] In some embodiments, the swing arm 4 is provided with anti-skid lines.

[0040] The anti-skid lines increase the friction coefficient of the surface of the swing arm 4, so that the user holds the swing arm 4 more stably and is not easy to slip.

[0041] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inner", "outer", "inner side", "outer side" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application. Among them, "inside" refers to the inside or enclosed area or space. "Periphery" refers to the area around a particular component or a particular area.

[0042] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An adjustable door stop comprising a first base provided with a first limit hook, characterized in that: Also include: Second base, provided with the installation groove and guide groove intercommunication, the guide groove is equipped with spring and pearl, one end of spring abuts on guide groove, the other end of spring and pearl connect; Connecting assembly, including limiting sheet, connecting piece and rotating wheel, limiting sheet is located in one side of installation groove, one end of connecting piece is equipped with cylindrical convex, the other end of connecting piece is equipped with insertion slot, the middle part of connecting piece is equipped with the slot of pearl communication, convex is connected by wearing installation groove and limiting sheet, convex is equipped with several arc grooves, insertion slot is equipped with limiting convex strip, rotating wheel is installed in slot, the middle of rotating wheel is equipped with screw thread; Swing arm, one end is equipped with threaded rod and limiting groove, threaded rod is inserted in insertion slot and is connected with rotating wheel by screw thread, limiting convex strip is clamped in limiting groove, the other end can be connected to first limiting hook by rotation.

2. An adjustable door closer according to claim 1 wherein: The arc grooves are four, and the arc grooves are arranged in a ring along the outer ring surface of the convex.

3. An adjustable door closer according to claim 1 or 2, wherein: The convex is equipped with screw hole, the both sides of screw hole are equipped with convex block, limiting sheet is equipped with limiting hole, convex block is inserted in limiting hole, convex and limiting sheet are fixedly connected by bolt through limiting hole and screw hole.

4. An adjustable door closer according to claim 1, wherein: One side of the first base is equipped with first bottom plate, the first bottom plate is equipped with first connecting hole, the first base is equipped with first connecting slot, the first bottom plate and the first base are fixedly connected by bolt through first connecting hole and first connecting slot;One side of the second base is equipped with second bottom plate, the second bottom plate is equipped with second connecting hole, the second base is equipped with second connecting slot, the second bottom plate and the second base are fixedly connected by bolt through second connecting hole and second connecting slot.

5. An adjustable door closer according to claim 4, wherein: The first base and the first bottom plate are both equipped with third connecting hole, the first base and the first bottom plate are fixedly connected by bolt through third connecting hole, the second base and the second bottom plate are both equipped with fourth connecting hole, the second base and the second bottom plate are fixedly connected by bolt through fourth connecting hole.

6. An adjustable door closer according to claim 1, wherein: The free end of the swing arm is equipped with second limiting hook, the second limiting hook can be locked with the first limiting hook.

7. An adjustable door closer according to claim 1 or 6 wherein: The first limiting hook opening is set downward.

8. An adjustable door closer according to claim 1, wherein: The swing arm is equipped with anti-skid line.