Quick-mounting handle of door lock

Abstract

The invention relates to the technical field of door lock handles, and discloses a door lock quick-mounting handle which comprises a handle body, a slotted square rod and a mounting seat, a limiting and locking module is arranged between the handle body and the slotted square rod, and the limiting and locking module comprises a steel head adapter, a limiting assembly and a fastening screw. The steel head adapter is provided with a strip-shaped through groove matched with the slotted square rod in a penetrating mode, the steel head adapter is provided with a first mounting hole and a slot extending from the end to the first mounting hole, the slotted square rod is provided with a sliding groove along the axis, the handle body is provided with a second mounting hole, and the second mounting hole is provided with a sliding groove extending from the end to the first mounting hole. The limiting assembly is used for limiting the handle body on the slotted square rod, the fastening screw penetrates through the second mounting hole and then is inserted into the sliding groove from the first mounting hole along the slot to be used for locking and limiting the handle body, and the door lock handle is convenient to quickly mount and replace.

Description

Technical Field

[0001] This application relates to the field of door lock handle technology, and in particular to a quick-release door lock handle. Background Technology

[0002] In the field of architectural hardware and security door locks, door lock handles are one of the most frequently touched components by users. With the increasing popularity of ECO handles, most existing handles and handle accessories are not replaceable. Currently, the mainstream door lock handles on the market generally use a two-sided screw fastening installation method. Its typical structure is as follows: Figure 9 As shown, screw holes are provided on both sides of the handle neck. During installation, the handle needs to be fixed to the door panel or lock body panel using the screws 200 on both sides of the handle.

[0003] However, this traditional method of fixing handles with screws suffers from insufficient space for installation and maintenance in practice, as door lock handles are usually installed close to the door leaf, door frame, or lock body panel. When disassembling and replacing the handle, if... Figure 9 As shown, when tightening or loosening screws located inside the handle, the operating space for tools such as screwdrivers is often extremely narrow, sometimes even making it impossible to align them perpendicularly or at a reasonable angle. When the operator touches the screw, the screwdriver interferes with the handle. This "no installation space" condition directly leads to tools being unable to effectively reach in, difficult to apply force, or even getting stuck, greatly reducing installation efficiency. Furthermore, with the increasing prevalence of home repairs, more and more end-users want to replace different door lock handles themselves. Currently, the traditional door lock handle structure makes disassembling and replacing different models of handles very inconvenient. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a quick-release handle for door locks that is easy to disassemble and replace and convenient to install.

[0005] The technical solution of the present invention is as follows: a quick-release door lock handle, comprising a handle body, a slotted square bar connected to the handle body, and a mounting base rotatably engaged with the handle body. A limiting locking module is provided between the handle body and the slotted square bar. The limiting locking module includes a steel head adapter, a limiting component connected to the steel head adapter, and a set screw. The steel head adapter has a through slot adapted to the slotted square bar along its axis. The steel head adapter has a first mounting hole and a slot extending from the end to the first mounting hole. The slotted square bar has a sliding groove corresponding to the slot along its axis. The handle body has a second mounting hole. The limiting component is used to limit the handle body on the slotted square bar. The set screw passes through the second mounting hole and is inserted into the sliding groove from the first mounting hole along the slot to lock and limit the handle body.

[0006] As can be seen from the above solution, this invention is used for more convenient and faster installation. This invention uses a limiting and locking module to prevent destructive disassembly, balance materials, and facilitate production. The limiting component is used to pre-position the handle body. The set screw is used to fix the handle body to the slotted square bar through the steel head adapter, thereby fixing the handle body and the steel head adapter. The slot allows the handle body with the set screw to be directly inserted into the steel head adapter, facilitating quick installation and replacement of the handle body. This invention has a flexible and versatile product assembly method, and multiple handle body product types can be interchanged.

[0007] The limiting component includes at least one locking spring piece disposed between the slotted square bar and the steel head adapter. The outer wall of the steel head adapter has a through hole. One end of the locking spring piece is hooked onto the steel head adapter, and the other end extends outward from the through hole to abut against the handle body. Therefore, the locking spring piece is used to limit the contact of the handle body, preventing it from falling off after the set screw is removed.

[0008] The locking spring includes an integrally formed locking part, a connecting part, and a spring part. The locking part and the spring part are respectively disposed on both sides of the connecting part. The locking part includes a folding section and a hanging section, and a locking groove is provided between the folding section and the hanging section. Therefore, the locking part is used to lock and limit the locking spring on the steel head adapter, and the spring part is used to limit the contact with the handle body, preventing the handle body from falling off after the set screw is removed.

[0009] The handle body includes a handle rod and a handle steel head connected to the handle rod. The second mounting hole is provided on the handle steel head. The set screw passes through the second mounting hole and the first mounting hole in sequence and is then inserted into the slide groove.

[0010] The inner wall of the handle steel head has mounting grooves on both sides facing each other, and the inner wall of the steel head adapter has symmetrically arranged spring clip limiting grooves to accommodate the clamping spring clips. The mounting grooves are adapted to the folding section. It can be seen that the spring clip limiting grooves and the mounting grooves are used to limit the installation of the clamping spring clips and provide spatial avoidance.

[0011] One end of the steel head adapter is connected to the bearing assembly in the mounting base, and the other end is fitted with the handle steel head. The bearing assembly includes a sliding bearing and a ball bearing arranged sequentially from the inside to the outside. The sliding bearing is fitted on the steel head adapter, and the inner ring of the ball bearing is fitted on the sliding bearing and cooperates with the sliding bearing.

[0012] The mounting base includes a mounting base plate, a mounting cover plate, and a mounting disc seat disposed between the mounting base plate and the mounting cover plate. A guide seat is provided on the mounting disc seat extending out of the mounting base plate.

[0013] The mounting base is equipped with a resilient reset assembly, which includes two arc-shaped guide grooves on the outer surface of the mounting base, a spring located within the arc-shaped guide grooves, and a spring lever. The spring lever is connected to the steel head adapter through a central connecting hole. Therefore, the resilient reset assembly is used to reset the handle body after rotation.

[0014] Symmetrical limiting blocks are provided between the arc-shaped guide rail grooves. The spring lever is provided with a locking protrusion and an elastic limiting post corresponding to the arc-shaped guide rail groove. The locking protrusion corresponds to the limiting block, and the elastic limiting post extends into the arc-shaped guide rail groove. One end of the spring contacts the end wall of the arc-shaped guide rail groove, and the other end is sleeved on the elastic limiting post. Therefore, when the handle body rotates under external force, it synchronously drives the spring lever to rotate. The spring lever, by driving the elastic limiting post, compresses the spring and rotates within the arc-shaped guide rail groove. The spring is used to drive the handle body to return to its original position.

[0015] Two sets of quick-release handles are symmetrically arranged on the door, and the two sets of quick-release handles share a slotted square bar. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a partial exploded view of the present invention; Figure 4 This is a cross-sectional view of the present invention; Figure 5 This is a structural diagram of the steel head adapter; Figure 6 This is a schematic diagram of the clamping spring clip structure; Figure 7 This is a partial structural schematic diagram of the present invention; Figure 8 This is a structural diagram of the handle body; Figure 9 This is a schematic diagram of the existing handle installation structure. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0018] like Figures 1 to 8As shown, the present invention is a quick-install handle for a door lock, comprising a handle body 1, a slotted square bar 2 connected to the handle body 1, and a mounting base 3 rotatably engaged with the handle body 1. A limit locking module is provided between the handle body 1 and the slotted square bar 2. The limit locking module includes a steel head adapter 5, a limit component connected to the steel head adapter 5, and a set screw 8. The steel head adapter 5 has a through slot 54 along its axis that is adapted to the slotted square bar 2. The handle body 1 is provided with a first mounting hole 52 and a slot 53 extending from the end to the first mounting hole 52. The slotted square bar 2 is provided with a sliding groove 21 along the axis corresponding to the slot 53. The handle body 1 is provided with a second mounting hole 62. The limiting component is used to abut and limit the handle body 1 to the slotted square bar 2. The set screw 8 passes through the second mounting hole 62 and is inserted into the sliding groove 21 from the first mounting hole 52 along the slot 53 to lock and limit the handle body 1.

[0019] Existing as Figure 9 In this handle structure, the handle body 1 is fixed to the door via the mounting base plate 301 during assembly and disassembly. The mounting base plate 301 must be disassembled simultaneously for assembly and disassembly to proceed. This solution differs from existing technologies in that… Figure 9 When disassembling the handle body 1, it is not necessary to disassemble the mounting base 3, which ensures the stability of the internal structure of the mounting base 3 during disassembly and assembly, and improves the security of the door lock when replacing the handle body 1.

[0020] The limiting component includes at least one clamping spring 7 disposed between the slotted square bar 2 and the steel head adapter 5. A through hole 51 is formed on the outer wall of the steel head adapter 5. One end of the clamping spring 7 is hung on the steel head adapter 5, and the other end extends outward from the through hole 51 to abut against the handle body 1. In this embodiment, the limiting component includes two clamping springs 7 symmetrically disposed between the slotted square bar 2 and the steel head adapter 5, which facilitates improved stability of the connection and installation. The number of through holes 51 corresponds to the number of clamping springs 7, and they are disposed on the radially opposite side walls of the steel head adapter 5.

[0021] The clamping spring 7 includes an integrally formed clamping part 71, a connecting part 72, and a spring part 73. The clamping part 71 and the spring part 73 are respectively disposed on both sides of the connecting part 72. The connecting part 72 of the clamping spring 7 is clamped between the steel head adapter 4 and the slotted square bar 2. The clamping part 71 includes a folding section 711 and a hanging section 712. A positioning groove is provided between the folding section 711 and the hanging section 712. In this embodiment, the spring portion 73 of the clamping spring 7 contacts the inner wall of the handle body 1. When the clamping spring 7 is installed, the clamping portions 71 of the two sets of clamping springs 7 are respectively hung on the steel head adapter 5 through the spring limiting groove 55, so that the steel head adapter 5 is clamped between the connecting portion 72 and the folding section 711. The spring portion 73 corresponds to the through hole 51. The outer surface of the hanging portion 712 is provided with welding points for laser welding to fix the clamping spring 7. The slotted square rod 2 is inserted into the steel head adapter 5 after the clamping spring 7 is welded, and the clamping spring 7 is lifted up. The clamping portion 71 is inserted into the spring limiting groove 55 through the locking groove to form an inverted buckle. Even if the set screw 8 is loosened, the handle body 1 cannot fall off the steel head adapter 5, and the handle body 1 functions normally.

[0022] The handle body 1 includes a handle rod 11 and a handle steel head 6 connected to the handle rod 11. A second mounting hole 62 is provided on the handle steel head 6. The set screw 8 passes through the second mounting hole 62 and the first mounting hole 52 in sequence and is inserted into the sliding groove 21. Mounting grooves 61 are provided on opposite sides of the inner wall of the handle steel head 6. A spring-limiting groove 55 for accommodating the clamping spring 7 is symmetrically provided on the inner wall of the steel head adapter 5. The spring-limiting groove 55 is adapted to the connecting part 72, and the mounting grooves 61 are adapted to the folding section 711. In this embodiment, the handle rod 11 and the handle steel head 6 are integrally formed. In one embodiment, the handle rod 11 and the handle steel head 6 are fixedly connected. Different models of handle bodies 1 can be disassembled and replaced using the same handle steel head 6 structure, allowing for selection of the handle body 1 model and high versatility.

[0023] One end of the steel head adapter 5 is connected to the bearing assembly 4, and the other end is fitted with the handle steel head 6. The bearing assembly 4 includes a sliding bearing 41 and a ball bearing 42 arranged sequentially from the inside to the outside. The sliding bearing 41 is fitted onto the steel head adapter 5, and the inner ring of the ball bearing is fitted onto and cooperates with the sliding bearing 41. In this embodiment, the sliding bearing 41 is a nylon sliding bearing.

[0024] During the assembly of mounting base 3, steel head adapter 5 is coaxially connected to bearing assembly 4 inside mounting base 3. The slotted square bar 2 is inserted along the strip through groove 54 of steel head adapter 5. The outer surface of the slotted square bar 2 contacts and presses against the connecting part 72, lifting the locking spring 7. The end of the spring part 73 extends out from the through hole 51 and presses against the inner wall of handle body 1. Even if the set screw 8 is loosened, handle body 1 cannot fall off steel head adapter 5, and handle body 1 functions normally.

[0025] The mounting base 3 includes a mounting base plate 301, a mounting cover plate 302, and a mounting disc base 303 disposed between the mounting base plate 301 and the mounting cover plate 302. A guide seat 304 is provided on the mounting disc base 303 extending out of the mounting base plate 301. In this embodiment, the elastic reset component is mounted on the mounting disc base 303, and the bearing assembly 4 is mounted at the center of the mounting base plate 301. The two sets of mounting bases 3 on both sides of the door are fixedly connected by a nut guide sleeve. Specifically, the inner mounting base 3 is provided with at least two guide posts, and the outer mounting base 3 is provided with a guide sleeve adapted to the guide posts and a long nut. The long nut passes through the guide sleeve and the guide post and is threadedly connected to the guide post, ensuring the stability of the installation.

[0026] The mounting base 3 is provided with an elastic reset assembly, which includes two arc-shaped guide grooves 31 on the mounting base 3, a spring 32 located in the arc-shaped guide grooves 31, and a spring lever 33. The arc-shaped guide grooves 31 are disposed in the mounting plate 303. The spring lever 33 is fixedly connected to the steel head adapter 5 through a central connecting hole 330. A locking groove 333 is provided on the inner side of the central connecting hole 330 to realize the steel head adapter 5 in the mounting plate 303. The spring lever 33 has a locking position, and the arc-shaped guide rail grooves 31 are symmetrically provided with limiting blocks 34. The spring lever 33 is provided with a locking protrusion 331 and an elastic limiting post 332 corresponding to the arc-shaped guide rail grooves 31. The locking protrusion 331 and the limiting block 34 are provided in correspondence. The elastic limiting post 332 extends into the arc-shaped guide rail grooves 31. One end of the spring 32 contacts the end wall of the arc-shaped guide rail grooves 31, and the other end is sleeved on the elastic limiting post 332. In this embodiment, the elastic limiting post 332 and the locking protrusion 331 are separated by a central angle of 90 degrees. When the handle body 1 is rotated, the steel head adapter 5 rotates, thereby driving the spring pawl 33 to rotate synchronously. The elastic limiting post 332 compresses the spring 32 to rotate along the arc-shaped guide groove 31. At this time, the spring 32 is in a compressed state. When the locking protrusion 331 rotates synchronously to abut the limiting block 34, the maximum rotation value of the handle body 1 is reached. When the handle body 1 loses the external force, the spring 32 resets, thereby driving the handle body 1 to reset.

[0027] Two sets of quick-release handles are symmetrically arranged on the door, and the two sets of quick-release handles share a slotted square rod 2. In this embodiment, the two sets of quick-release handles are arranged along the axis of the slotted square rod 2, respectively located inside and outside the door. The two mounting seats 3 inside and outside the door are connected by a guide seat 304 using a sleeve and a sleeve rod. During operation, the two handle bodies 1 rotate synchronously.

[0028] When replacing the handle body 1 after quick disassembly, first insert the set screw 8 into the second mounting hole 62 of the handle steel head 6, and then move the handle body 1 with the set screw 8 along the slot 53 from the outside to the inside toward the first mounting hole 52. The set screw 8 passes through the second mounting hole 62 and the first mounting hole 52 in sequence and then abuts against the surface of the slotted square bar 2. Screw the bottom end of the set screw 8 into the slide groove 21 to achieve the tightening and limiting fixation of the handle body 1 and the slotted square bar 2.

[0029] Finally, it should be emphasized that the above description is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-release handle for a door lock, characterized in that: The device includes a handle body (1), a slotted square bar (2) connected to the handle body (1), and a mounting base (3) rotatably engaged with the handle body (1). A limit locking module is provided between the handle body (1) and the slotted square bar (2). The limit locking module includes a steel head adapter (5), a limit component connected to the steel head adapter (5), and a set screw (8). The steel head adapter (5) has a through slot (54) along its axis that is compatible with the slotted square bar (2). The steel head adapter (5) has a first mounting hole. 52) and a slot (53) extending from the end to the first mounting hole (52), the slotted square bar (2) is provided with a sliding groove (21) corresponding to the slot (53) along the axis, the handle body (1) is provided with a second mounting hole (62), the limiting component is used to limit the handle body (1) on the slotted square bar (2), the set screw (8) passes through the second mounting hole (62) and is inserted into the sliding groove (21) from the first mounting hole (52) along the slot (53) to lock and limit the handle body (1).

2. A quick-release handle for a door lock according to claim 1, characterized in that: The limiting component includes at least one clamping spring (7) disposed between the slotted square bar (2) and the steel head adapter (5). The outer wall of the steel head adapter (5) is provided with a through hole (51). One end of the clamping spring (7) is hung on the steel head adapter (5), and the other end extends outward from the through hole (51) and abuts against the handle body (1).

3. A quick-release handle for a door lock according to claim 2, characterized in that: The clamping spring (7) includes an integrally formed clamping part (71), a connecting part (72), and a spring part (73). The clamping part (71) and the spring part (73) are respectively disposed on both sides of the connecting part (72). The clamping part (71) includes a folding section (711) and a hanging section (712). A locking groove is provided between the folding section (711) and the hanging section (712).

4. A quick-release handle for a door lock according to claim 1, characterized in that: The handle body (1) includes a handle rod (11) and a handle steel head (6) connected to the handle rod (11). The second mounting hole (62) is provided on the handle steel head (6). The set screw (8) passes through the second mounting hole (62) and the first mounting hole (52) in sequence and is then inserted into the slide groove (21).

5. A quick-release handle for a door lock according to claim 4, characterized in that: The inner walls of the handle steel head (6) are provided with mounting grooves (61) on both sides. The inner walls of the steel head adapter (5) are symmetrically provided with spring limiting grooves (55) for accommodating the clamping spring (7). The mounting grooves (61) are adapted to the folding section (711).

6. A quick-release handle for a door lock according to claim 4, characterized in that: One end of the steel head adapter (5) is connected to the bearing assembly (4) inside the mounting base (3), and the other end is fitted with the handle steel head (6). The bearing assembly (4) includes a sliding bearing (41) and a ball bearing (42) arranged sequentially from the inside to the outside. The sliding bearing (41) is fitted on the steel head adapter (5), and the inner ring of the ball bearing (42) is fitted on the sliding bearing (41) and cooperates with the sliding bearing (41).

7. A quick-release handle for a door lock according to claim 1, characterized in that: The mounting base (3) includes a mounting base plate (301), a mounting cover plate (302), and a mounting plate seat (303) disposed between the mounting base plate (301) and the mounting cover plate (302). A guide seat (304) is provided on the mounting plate seat (303) extending out of the mounting base plate (301).

8. A quick-release handle for a door lock according to claim 1, characterized in that: The mounting base (3) is provided with an elastic reset component, which includes two arc-shaped guide rail grooves (31) on the mounting base (3), a spring (32) located in the arc-shaped guide rail grooves (31), and a spring pawl (33). The spring pawl (33) is connected to the steel head adapter (5) through a central connecting hole (330).

9. A quick-release handle for a door lock according to claim 6, characterized in that: The arc-shaped guide rail grooves (31) are symmetrically provided with limiting blocks (34). The spring lever (33) is provided with a locking protrusion (331) and an elastic limiting post (332) corresponding to the arc-shaped guide rail grooves (31). The locking protrusion (331) is provided with the limiting block (34) in a corresponding manner. The elastic limiting post (332) extends into the arc-shaped guide rail groove (31). One end of the spring (32) contacts the end wall of the arc-shaped guide rail groove (31), and the other end is sleeved on the elastic limiting post (332).

10. A quick-release handle for a door lock according to claim 1, characterized in that: Two sets of quick-release handles are symmetrically arranged on the door, and the two sets of quick-release handles share a slotted square bar (2).

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