Reversing handle free of disassembly and assembly for door lock

By designing a door lock reversing handle that eliminates the need for disassembly, and utilizing the cooperative structure of a convex ring and a limiting block, the problem of disassembly is solved in existing technologies where the handle direction needs to be changed. This achieves simple reversing and a stable handle connection, making it suitable for fully automatic door locks and improving installation efficiency and service life.

CN223577734UActive Publication Date: 2025-11-21ZHEJIANG TANGDI ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202423058676.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-11-21
Estimated Expiration
2034-12-11

AI Technical Summary

Technical Problem

Existing door locks require disassembly when changing the handle direction, especially for door locks with complex structures, which makes installation and use inconvenient and affects work efficiency.

Method used

A door lock reversing handle without disassembly was designed. By setting a cooperative structure of convex ring, limit block, spring and limit plate on the handle, the handle can be reversed without disassembling the door lock. The limit block and spring achieve a stable keyway fit and zero backlash during rotation.

Benefits of technology

It enables easy changing of handle direction, increases service life, is suitable for fully automatic door locks, is easy to install, has a wide range of compatibility, and can be changed without disassembling the door lock, thus improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of door lock reversing handles, in particular to a door lock dismounting-free reversing handle which is simple in structure, easy and convenient to operate and capable of completing reversing under the condition that a door lock is not dismounted. Comprising a handle, a vertical through hole is formed in the left side of the handle, a shaft sleeve is fixedly arranged on the bottom surface of the handle on the lower side of the through hole, a C-shaped convex ring is arranged on the upper side of the through hole, an annular boss is arranged in the convex ring, a plurality of grooves are embedded in the bottom surface of the annular boss, and a key is arranged on the head of the handle; a right opening of the convex ring is connected with a slideway groove with openings in the upper side and the left side, a handle limiting block is arranged in the slideway groove in a left-right sliding mode, a rectangular boss is arranged at the bottom of the handle limiting block, and a rectangular opening allowing the rectangular boss to slide left and right is embedded in the bottom face of the handle; round grooves are embedded in the front side, the rear side and the left side of the annular boss correspondingly, second springs are arranged in the round grooves, and the handle head limiting piece is detachably connected with the upper end of the handle head. A decorative plate is detachably installed on the upper side of the handle. The door lock is easy to operate, convenient to use and suitable for various door locks.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of door lock reversing handle, concretely to a door lock dismounting-free reversing handle. BACKGROUND

[0002] Door lock is used in many places, mainly plays a locking function when the door is closed. When installing the door lock, the door handle direction problem will be involved. Sometimes the door handle direction is not appropriate and needs to be adjusted. At present, when the commonly used door lock is installed on the door, the handle direction needs to be changed by dismounting the door lock, which is troublesome. Moreover, some door lock structures are complex and the dismounting process is complicated, so even professional personnel need a long time to complete, which causes inconvenience to the installation and use of the door lock and affects the work efficiency. UTILITARY MODEL

[0003] In view of the deficiencies of the prior art, the utility model provides a door lock dismounting-free reversing handle, which is simple in structure and easy to operate, can complete reversing without dismounting the door lock, and effectively solves the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a door lock dismounting-free reversing handle, characterized by comprising a handle, the handle is in the form of a horizontally open box body, a through hole in the up-down direction is arranged on the left side of the handle, a shaft sleeve matched with the handle head is fixedly arranged on the bottom surface of the handle on the lower side of the through hole, a C-shaped convex ring is fixedly arranged in the box body on the upper side of the through hole, a ring-shaped boss is fixedly arranged in the convex ring, a plurality of grooves are embedded in the bottom surface of the ring-shaped boss in a ring-shaped and spaced-apart manner, and a plurality of keys matched with the grooves are arranged on the handle head;

[0005] The convex ring is connected with the sliding groove with the upper side and the left side opening at the right opening, the handle limiting block is slidably arranged in the sliding groove, the handle limiting block is embedded with the clamping groove with the upper side and the right side opening on the right side, the first spring is arranged in the clamping groove, the rectangular boss is arranged on the bottom of the handle limiting block, and the rectangular opening for the left and right sliding of the rectangular boss is embedded in the bottom surface of the handle;

[0006] The handle limiting block fixing plate is detachably arranged on the sliding groove;

[0007] The ring-shaped boss is embedded with vertical circular grooves on the left side and the front and back sides, the vertical second spring is arranged in the circular groove, the handle head limiting plate is arranged on the upper side of the second spring, and the handle head limiting plate is detachably connected with the upper end of the handle head;

[0008] The decorative plate is detachably arranged on the upper side of the handle.

[0009] As a preferred technical scheme, the handle head is a vertical cylinder, the upper end is reduced in diameter and fixedly provided with a first protruding column, the upper surface of the first protruding column is fixedly provided with a second protruding column, and the upper surface of the first protruding column is circumferentially and spacedly provided with a plurality of keys matched with the slots on the handle head;

[0010] The second protruding column is embedded with a screw hole matched with the handle head limiting piece at the top;

[0011] The bottom of the handle head is embedded upward with a mounting hole matched with the door lock.

[0012] As a preferred technical scheme, the left end of the handle limiting block is in an arc-shaped structure matched with the right side surface of the upper end of the handle head.

[0013] As a preferred technical scheme, the left end of the handle limiting block is located at the lower side of the handle head limiting piece.

[0014] As a preferred technical scheme, the handle limiting block fixed piece is fixedly provided with a fixed ring around, a first screw is downwardly arranged in the fixed ring, and a first fixed seat matched with the first screw is arranged outside the sliding groove.

[0015] As a preferred technical scheme, the handle head limiting piece is in a circular structure, a plurality of through holes are circumferentially embedded on the upper surface of the handle head limiting piece, and a second screw matched with the screw hole is arranged in the through hole.

[0016] As a preferred technical scheme, the bottom surface of the decorative plate is respectively provided with a second fixed seat at four corners, the handle is respectively provided with a countersunk hole matched with the second fixed seat at four corners, and a third screw matched with the second fixed seat is upwardly arranged in the countersunk hole.

[0017] As a preferred technical scheme, the rectangular boss is protruded from the rectangular opening.

[0018] Compared with the prior art, the door lock disassembly-free reversing handle has the following beneficial effects:

[0019] 1. The annular boss is fixedly arranged in the convex ring, the bottom surface of the annular boss is upwardly embedded with a plurality of slots in annular and spaced manner, the handle head is provided with a plurality of keys matched with the slots, the key and slot matching structure of the handle and the handle head is more stable during use, rotation has no gap, the service life is greatly increased, the door lock does not need to be disassembled, the handle direction can be directly replaced, is particularly suitable for full-automatic door lock handle reversing, is simple to install, and has a wide adaptation range.

[0020] 2.The utility model discloses a handle limiting block, first spring, handle head, handle head limiting piece and the cooperation of second spring, when using, the right handle limiting block is slid to the rectangular boss outside rectangular through -hole, handle head limiting piece is limited to the handle limiting block, and the handle can be pulled out, keyway is separated, and the handle is rotated to the specified direction, under the action of second spring, new keyway is pressed and cooperates, and the handle limiting block resets under the action of first spring.

[0021] 3.The utility model discloses a handle limiting block fixed piece is fixed with fixed ring around, and the first bolt is passed downward in the fixed ring, and the first fixed seat that cooperates with first bolt is equipped with outside slide channel, when using, handle limiting block fixed piece can be connected fixed with first fixed seat through first bolt, and handle limiting block is limited to the function, prevents handle limiting block and slips upward. DRAWINGS

[0022] The drawings described here are used to provide further understanding of the utility model and constitute a part of this application:

[0023] Figure 1 It is the explosion structure diagram of the utility model first embodiment;

[0024] Figure 2 It is Figure 1 The three -dimensional structure schematic diagram after assembling;

[0025] Figure 3 It is the handle and handle head cooperation cross -section structure schematic diagram

[0026] Figure 4 It is Figure 1 The enlarged structure schematic diagram of handle;

[0027] Figure 5 It is the three -dimensional structure schematic diagram of another angle of handle;

[0028] Figure 6 It is the three -dimensional structure schematic diagram of another angle of handle;

[0029] Figure 7 It is the overhead structure schematic diagram of handle;

[0030] Figure 8 It is Figure 1 The enlarged structure schematic diagram of handle limiting block.

[0031] The diagram shows: 1. Handle; 10. Through hole; 11. Bushing; 12. convex ring; 13. Annular boss; 131. Groove; 132. Circular groove; 14. Slide groove; 15. First fixing seat; 16. Countersunk hole; 17. Third bolt; 18. Rectangular opening; 2. Handle head; 21. First protrusion; 211. Key; 22. Second protrusion; 221. Screw hole; 3. Handle limiting block; 31. Slot; 32. Rectangular boss; 33. Arc structure; 4. Handle limiting block fixing piece; 41. Fixing ring; 42. First bolt; 5. Second spring; 6. Handle head limiting piece; 61. Through hole; 62. Second bolt; 7. Decorative plate; 71. Second fixing seat. Detailed Implementation

[0032] 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.

[0033] Example 1

[0034] like Figures 1 to 8 As shown, a door lock reversing handle that does not require disassembly includes a handle 1. The handle 1 is a box-shaped body with a horizontally upward opening. The left side of the handle 1 has a vertical through hole 10. The bottom surface of the handle 1 below the through hole is fixed with a bushing 11 that mates with the handle head 2. The box body above the through hole is fixed with a C-shaped protruding ring 12. The protruding ring 12 has an annular boss 13 fixed in it. The bottom surface of the annular boss 13 has several grooves 131 interspersed upwards in annular intervals. The handle head 2 has several keys 211 (fan-shaped blocks) that match the grooves 131. The right opening of the protruding ring 12 is connected to a slide groove 14 with openings on the upper and left sides. A handle limiting block 3 is slidably mounted in the slide groove 14. The right side of the upper surface of the handle limiting block 3 has a slot 31 with openings on the upper and right sides. A first spring 34 extending out of the slot 31 is placed in the slot 31. The bottom of the handle limiting block 3 has a rectangular boss 32. The bottom surface of the handle 1 has a rectangular opening 18 for the rectangular boss 32 to slide left and right. A rectangular boss 32 extends from a rectangular opening 18 at its bottom. A handle limiting block fixing piece 4 is detachably provided on the slide groove 14.

[0035] The annular boss 13 has vertical circular grooves 132 embedded on the front and rear sides and the left side, and a vertical second spring 5 is placed in the circular groove 132. A handle head limiting piece 6 is placed on the upper side of the second spring 5. The handle head limiting piece 6 is detachably connected to the upper end of the handle head 2.

[0036] A decorative panel 7 can be detachably installed on the upper side of handle 1.

[0037] The handle head 2 is a vertical cylinder, the upper end is fixedly provided with a first protruding column 21, the upper surface of the first protruding column 21 is fixedly provided with a second protruding column 22, and the upper surface of the first protruding column 21 is circumferentially and spacedly provided with a plurality of keys 211 which are clamped and matched with the grooves 131 on the handle 1. The top of the second protruding column 22 is embedded with a threaded hole 221 which is matched with the handle head limiting piece 6. The bottom of the handle head 22 is embedded upwardly with a mounting hole which is matched with the door lock (prior art, known by those skilled in the art).

[0038] The left end of the handle limiting block 3 is in an arc-shaped structure 33 which is matched with the right side surface of the upper end of the handle head 2.

[0039] The left end of the handle limiting block 3 is located below the handle head limiting piece 6.

[0040] The handle limiting block fixing piece 4 is fixedly provided with a fixing ring 41 around the periphery, the first screw 42 is downwardly threaded in the fixing ring 41, and the first fixing seat 15 which is matched with the first screw 42 is arranged outside the slide groove 14.

[0041] The handle head limiting piece 6 is in a circular structure, a plurality of through holes 61 are circumferentially embedded on the upper surface of the handle head limiting piece 6, and the second screw 62 which is matched with the threaded hole 221 is threaded in the through hole 61.

[0042] The bottom surface of the decorative plate 7 is respectively provided with a second fixing seat 71 at four corners, the handle 1 is respectively provided with a countersunk hole 16 which is matched with the second fixing seat 71 at four corners, and the third screw 17 which is matched with the second fixing seat 71 is upwardly threaded in the countersunk hole 16.

[0043] In use, the rectangular boss 32 is pushed rightward outside the rectangular through hole 18, so that the handle limiting block 3 slides rightward, the handle head limiting piece 6 is released from the limiting of the handle limiting block 3, the handle 1 can be pulled out partially, the key 131 groove 211 is separated, the handle 1 is rotated to a specified direction, under the action of the second spring 5, the new key 131 groove 211 is tightly matched, and the handle limiting block 3 is reset under the action of the first spring 34. The key and groove matching structure of the handle 1 and the handle head 2 is more stable, there is no gap in rotation, the service life is greatly increased, the door lock does not need to be disassembled, the handle direction can be directly replaced, and the handle is particularly suitable for full-automatic door lock handle reversing, simple installation and wide adaptation range.

[0044] The utility model is independent handle structure, handle head and door lock clutch connection, no special change door lock and door lock clutch structure.

[0045] The components used in the utility model are all general standard components or components known by those skilled in the art, and the structure and principle thereof are well known by those skilled in the art.

[0046] It should be noted that, in this article, the terms "first", "second", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device.

[0047] The structures, proportions, sizes and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the conditions that can be implemented by the present application. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0048] Although embodiments of the present application have been shown and described, it will be understood by those skilled 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. A door lock removal-free reversing handle, characterized in that: The handle is a horizontally open box, and a through hole is arranged on the left side of the handle in the vertical direction. A C-shaped convex ring is fixed in the box, and a ring-shaped boss is fixed in the convex ring. The boss is embedded with a plurality of grooves in the ring-shaped space. A plurality of keys are arranged on the handle head. The right opening of the convex ring is connected with the slide groove on the upper side and the left side.

2. A door lock removal-free reversing handle according to claim 1, characterized in that: The slide groove is arranged with a handle limiting block which is slidably arranged in the left and right directions. The handle limiting block is embedded with a clamping groove on the right side. The clamping groove is arranged with a first spring which extends out of the clamping groove.

3. A door lock removal-free reversing handle according to claim 1, characterized in that: The bottom of the handle limiting block is arranged with a rectangular boss.

4. The door lock removal-free reversing handle according to claim 1, characterized in that: The bottom surface of the handle is embedded with a rectangular opening for the left and right sliding of the rectangular boss.

5. The door lock removal-free reversing handle according to claim 1, characterized in that: The slide groove is detachably arranged with a handle limiting block fixing piece.

6. A door lock removal-free reversing handle according to claim 1, characterized in that: The left and right sides of the ring-shaped boss are respectively embedded with vertical circular grooves.

7. A door lock removal-free reversing handle according to claim 1, characterized in that: The circular grooves are arranged with vertical second springs.

8. A door lock removal-free reversing handle according to claim 1, characterized in that: The upper side of the second spring is arranged with a handle head limiting piece. The handle head limiting piece is detachably connected with the upper end of the handle head. The upper side of the handle is detachably arranged with a decorative plate. The handle head is a vertical cylinder. The upper end is arranged with a first convex column. The upper surface of the first convex column is arranged with a second convex column. The upper surface of the first convex column is arranged with a plurality of keys which are matched with the grooves on the handle. The top of the second convex column is embedded with a screw hole which is matched with the handle head limiting piece. The bottom of the handle head is embedded with a mounting hole which is matched with the door lock. The left end of the handle limiting block is arranged in an arc-shaped structure which is matched with the right side of the upper end of the handle head. The left end of the handle limiting block is located below the handle head limiting piece. The handle limiting block fixing piece is fixed with a fixing ring. The first bolt is arranged in the fixing ring. The outer side of the slide groove is arranged with a first fixing seat which is matched with the first bolt. The handle head limiting piece is arranged in a circular structure. The upper surface of the handle head limiting piece is arranged with a plurality of through holes. The through holes are arranged with second bolts which are matched with the screw holes. The bottom surface of the decorative plate is arranged with a second fixing seat. The handle is arranged with a countersunk hole which is matched with the second fixing seat. The third bolt is arranged in the countersunk hole from bottom to top. The bottom of the rectangular boss extends out of the rectangular opening.