An interior handle of an interior door lock

Abstract

The utility model relates to the technical field of lockset, especially to an inner handle of an inside door lock, including handle, decoration cover, inside cover, inner lining, the inner lining is embedded in the inside cover, the decoration cover cover is established in the outside cover of inside cover, the handle passes through decoration cover, inside cover, inner lining in proper order, is equipped with the first connecting hole on the lateral wall of decoration cover, is equipped with the second connecting hole on the lateral wall of inside cover, is equipped with the third connecting hole on the inner lining, is equipped with the first axle hole for the handle installation on decoration cover, is equipped with the second axle hole with the first axle hole coaxial on inside cover, is equipped with four around the circumference evenly distributed protrusions on the hole edge of first axle hole, is equipped with the groove matched with protrusion on the hole edge of second axle hole, the utility model has the beneficial effect that: convenient assembly.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to an inner handle of an inner door lock. Background Technology

[0002] Interior door locks usually refer to interior door locks. Interior door locks are divided into integrated and split types. The structure of a split interior door lock is shown in a handle door lock with application number 202521072536.4. It includes a lock body placed inside the door body, an inner handle and an outer handle located on both sides of the lock body, and a lock cylinder, wherein the lock cylinder is located below the inner handle.

[0003] The structure of inner handles varies among different manufacturers. One existing inner handle includes a handle, a decorative cover, an inner cover, and an inner liner cover. During installation, the inner liner cover is installed on the door, the inner cover is placed on top of the inner liner cover, and the decorative cover is placed on top of the inner cover. The handle passes through the decorative cover, inner cover, and inner liner cover in sequence. The decorative cover, inner cover, and inner liner cover are connected by a headless screw. Therefore, connection holes are provided on the decorative cover, inner cover, and inner liner cover. Since both the decorative cover and inner cover are round, when the headless screw is passed through the connection holes, the decorative cover rotates, causing the connection holes to become misaligned. Therefore, how to make the headless screw pass smoothly through the connection holes of the decorative cover and inner cover has become an urgent problem to be solved. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an inner handle for an inner door lock that is easy to assemble, addressing the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An inner handle for an inner door lock includes a handle, a decorative cover, an inner cover, and an inner liner. The inner liner is embedded inside the inner cover, and the decorative cover is disposed outside the inner cover. The handle passes through the decorative cover, the inner cover, and the inner liner in sequence. The side wall of the decorative cover has a first connecting hole, the side wall of the inner cover has a second connecting hole, and the inner liner has a third connecting hole. The decorative cover has a first shaft hole for mounting the handle, and the inner cover has a second shaft hole coaxial with the first shaft hole. The edge of the first shaft hole has four protrusions evenly distributed around the circumference, and the edge of the second shaft hole has grooves matching the protrusions.

[0006] The present invention, which has the above-mentioned features, has a protrusion on the decorative cover and a groove on the inner cover. When the decorative cover is placed on the inner cover, rotating the decorative cover aligns the first connecting hole with the second connecting hole, and the protrusion and groove also align accordingly. At this time, the decorative cover is limited and can no longer rotate, and the headless screw can be easily passed through the first connecting hole in sequence. The protrusion and groove are arranged in a cross shape, which increases the stability of the limiting structure and ensures that the decorative cover will not rotate after it is aligned with the inner cover.

[0007] A further feature of this invention is that the side wall of the lining is provided with an inwardly recessed alignment groove, and the third connecting hole is located at the bottom of the alignment groove.

[0008] The present invention, which has the above-mentioned features, improves the efficiency of aligning the inner cover and the inner lining by setting an alignment groove on the inner lining.

[0009] A further feature of this invention is that the decorative cover includes a first bottom cover and a first sidewall surrounding the outer edge of the first bottom cover; the inner cover includes a second bottom cover and a second sidewall surrounding the outer edge of the second bottom cover; the first bottom cover and the second bottom cover have the same shape; the inner lining includes a third bottom cover and a third sidewall surrounding the outer edge of the third bottom cover; when the inner handle is assembled, the second sidewall is attached to the first sidewall, the first bottom cover is attached to the second bottom cover, the third sidewall is attached to the second sidewall, and the third bottom cover is positioned opposite to the second bottom cover.

[0010] The present invention having the above features: the decorative cover and the inner cover of the above structure fit together tightly, and the inner cover and the inner lining fit together tightly, increasing assembly stability.

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 This is an exploded view of an embodiment of the present utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the decorative cover according to an embodiment of the present utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the inner cover in an embodiment of the present utility model.

[0016] Figure 5 This is a schematic diagram of the structure of the liner in an embodiment of the present invention.

[0017] Figure 6 This is a schematic diagram illustrating the installation of the decorative cover, inner cover, and inner lining according to an embodiment of this utility model. Detailed Implementation

[0018] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0019] like Figures 1-6The inner handle 1 of an inner door lock shown includes a handle 1, a decorative cover 2, an inner cover 3, and an inner liner 4. The inner liner 4 is embedded inside the inner cover 3, and the decorative cover 2 covers the outer side of the inner cover 3. The handle 1 passes through the decorative cover 2, the inner cover 3, and the inner liner 4 in sequence. The decorative cover 2 includes a first cover bottom 21 and a first side wall 22 surrounding the outer edge of the first cover bottom 21. The first side wall 22 has a first connecting hole 221. The first cover bottom 21 has a first shaft hole 211 for mounting the handle 1. The edge of the first shaft hole 211 has four protrusions 2111 evenly distributed around the circumference. The inner cover 3 includes a second cover bottom 31 and a second side wall 32 surrounding the outer edge of the second cover bottom 31. The second side wall 32 has a second connecting hole 321. The second cover bottom 31 has... A second shaft hole 311 is provided, which is coaxial with the first shaft hole 211. The edge of the second shaft hole 311 is provided with a groove 3111 that matches the protrusion 2111. The inner liner 4 includes a third cover bottom 41 and a third side wall 42 surrounding the outer edge of the third cover bottom 41. The third side wall 42 is provided with a third connecting hole 421 and an inwardly recessed alignment groove 422. The third connecting hole 421 is located at the bottom of the alignment groove 422. The first cover bottom 21 and the second cover bottom 31 have the same shape. When the inner handle 1 is assembled, the second side wall 32 is attached to the first side wall 22, the first cover bottom 21 is attached to the second cover bottom 31, the third side wall 42 is attached to the second side wall 32, and the third cover bottom 41 is positioned opposite to the second cover bottom 31.

[0020] Since the main technical solution of this application lies in the protrusion of the decorative cover and the groove of the inner cover, and since the other structures of the inner cover and the inner liner are conventional technologies in the field, the other structures of the inner cover and the inner liner will not be described in detail.

[0021] When installing the inner handle, first place the inner lining inside the inner cover, and align the second connecting hole on the inner cover with the alignment groove of the inner lining. Then fix the two together on the door body. Next, place the decorative cover on the inner cover, aligning the protrusion with the groove and the first connecting hole with the second connecting hole. Finally, use headless screws to connect the three together.

Claims

1. An inner handle for an inner door lock, comprising a handle, a decorative cover, an inner cover, and an inner liner, wherein the inner liner is embedded inside the inner cover, the decorative cover is disposed outside the inner cover, the handle passes sequentially through the decorative cover, the inner cover, and the inner liner, a first connecting hole is provided on the side wall of the decorative cover, a second connecting hole is provided on the side wall of the inner cover, and a third connecting hole is provided on the inner liner, characterized in that: The decorative cover has a first shaft hole for mounting a handle, and the inner cover has a second shaft hole coaxial with the first shaft hole. The first shaft hole has four protrusions evenly distributed around its circumference on its edge, and the second shaft hole has a groove matching the protrusions on its edge.

2. The inner handle of an inner door lock according to claim 1, characterized in that: The inner lining has an inwardly recessed alignment groove on its side wall, and the third connecting hole is located at the bottom of the alignment groove.

3. The inner handle of an inner door lock according to claim 1 or 2, characterized in that: The decorative cover includes a first bottom cover and a first sidewall surrounding the outer edge of the first bottom cover. The inner cover includes a second bottom cover and a second sidewall surrounding the outer edge of the second bottom cover. The first bottom cover and the second bottom cover have the same shape. The inner lining includes a third bottom cover and a third sidewall surrounding the outer edge of the third bottom cover. When the inner handle is assembled, the second sidewall is attached to the first sidewall, the first bottom cover is attached to the second bottom cover, the third sidewall is attached to the second sidewall, and the third bottom cover is positioned opposite to the second bottom cover.

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