Inner lock shell structure of door lock shell

Abstract

The utility model relates to the technical field of door locks, in particular to an inner lock shell structure of a door lock shell, and two connecting piece positioning holes are formed in an inner lock shell; a connecting sheet is detachably connected in the connecting sheet positioning hole; the connecting piece can be connected to the connecting piece positioning hole after rotating by 180 degrees; a rotating central shaft of the connecting sheet is an axis; a countersunk head through hole is formed in the connecting sheet; the countersunk through hole is formed in the position deviating from the axis of the axis. When the inner lock shell is used, the distance between the countersunk head through holes can be switched by rotating the connecting piece, so that the inner lock shell and the connecting piece are combined into a universal piece which can be matched with two outer lock shell specifications, the storage pressure is reduced, and the labor intensity of the working procedure before lock body product packaging is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to an inner lock shell structure of a door lock shell. Background Art

[0002] The door lock is composed of a lock core fixed inside the door body, a lock shell fixed on both sides of the door body, and a door handle connected to the lock core and extending outside the lock shell; the door lock shell can be used to decorate the hole where the lock core is connected to the door body, and can also provide waterproof and dustproof effects for the lock core. The shell is composed of an outer lock shell 1 and an inner lock shell 2;

[0003] The outer lock housing 1 and the inner lock housing 2 are composed of a connecting column 101 (generally an internally threaded sleeve structure or a bolt structure) fixed on the inner surface of the inner lock housing 2 and a connecting piece (generally a bolt or an externally threaded sleeve) connected to the outer lock housing 1; the connecting piece and the connecting column 101 can pass through the hole opened on the door.

[0004] In order to ensure a stable connection between the outer lock shell 1 and the inner lock shell 2, the number of connecting columns 101 is generally symmetrically arranged up and down. However, in actual applications, there are generally two spacing specifications between the two connecting columns 101; namely, the first spacing A and the second spacing B; the first spacing A is 125mm; the second spacing B is 110mm. Therefore, the inner lock shell 2 needs to open corresponding holes at corresponding positions to match the spacing between the two connecting columns. Therefore, there are also two hole spacings of the inner lock shell 2. Therefore, the specifications of the inner lock shell 2 will also be two. This structure of the inner lock shell not only increases the storage pressure, but also requires measurement or inspection of the product specifications before the lock shell is packaged, which increases the labor intensity of the lock body product packaging and affects the efficiency of the lock body packaging. Utility Model Content

[0005] The utility model aims to provide an inner lock shell structure of a door lock shell in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model describes an inner lock shell structure of a door lock outer shell, which includes an inner lock shell; two connecting piece positioning holes are provided on the inner lock shell; a connecting piece is detachably connected to the connecting piece positioning hole; the connecting piece can be rotated one hundred and eighty degrees and then connected to the connecting piece positioning hole; the rotation center axis of the connecting piece is the shaft axis.

[0008] Furthermore, the connecting plate positioning hole is a waist-shaped hole; the connecting plate matches the connecting plate positioning hole; semicircular surfaces are provided at both ends of the connecting plate; the line between the centers of the two semicircular surfaces is the center line; the axis of the countersunk through hole is set on the center line.

[0009] Furthermore, a concave positioning ring is arranged around the end surface of the positioning hole of the connecting piece; a convex ring matching the concave positioning ring is arranged on the connecting piece; and the convex ring is embedded in the concave positioning ring.

[0010] After adopting the above structure, the beneficial effects of the utility model are as follows: the inner lock shell structure of the door lock outer shell described in the utility model can switch the spacing of the two countersunk through holes by rotating the connecting piece one hundred and eighty degrees when the utility model is used; and after the head of the bolt is embedded in the countersunk head of the countersunk through hole and passes through the countersunk through hole and is locked in the connecting column of the outer lock shell, the outer lock shell, the inner lock shell and the connecting piece are locked and fixed together, thereby improving the disassembly and assembly efficiency; the spacing of the countersunk through holes can be switched by rotating the connecting piece, so that the inner lock shell and the connecting piece are combined into a universal part, which can adapt to two outer lock shell specifications, reduce storage pressure, and reduce the labor intensity of the pre-packaging process of the lock body product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the outer lock housing;

[0012] Figure 2 It is an exploded view of the outer lock housing, the inner lock housing and the connecting piece;

[0013] Figure 3 It is a structural diagram of the inner lock shell;

[0014] Figure 4 It is a first visual stereogram of the connecting piece;

[0015] Figure 5 It is the second visual stereo of the connecting piece;

[0016] Figure 6 It is the front view of the connecting piece;

[0017] Description of reference numerals:

[0018] 1. External lock housing; 101. Connecting column; 2. Internal lock housing; 201. Connecting piece positioning hole;

[0019] 201a, positioning concave ring; 3, connecting piece; 301, convex ring; 302, countersunk through hole;

[0020] 303. semicircular arc surface; 304. line connecting the centers of circles; A. first spacing; B. second spacing. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 6As shown, the inner lock shell structure of the door lock shell of the utility model comprises an inner lock shell 2; two connecting piece positioning holes 201 are provided on the inner lock shell 2; a connecting piece 3 is detachably connected in the connecting piece positioning hole 201; the connecting piece 3 can be connected to the connecting piece positioning hole 201 after being rotated 180 degrees; the rotation center axis of the connecting piece 3 is the shaft axis;

[0023] The connecting piece 3 is provided with a countersunk through hole 302; the countersunk through hole 302 is arranged at a position deviating from the axis of the shaft center;

[0024] There are two solutions for installing the connecting piece 3. The first is: the hole distance between the two countersunk through holes 302 is 125mm. In this state, the countersunk through holes 302 are set on the outside of the axis of the shaft. The second is: the hole distance between the two countersunk through holes 302 is 110mm. In this state, the two connecting pieces 3 need to be rotated 180 degrees on the original basis and then re-embedded into the connecting piece positioning hole 201. In addition, the above-mentioned hole distances of 125mm and 110mm are the dimensions of one of the examples in this case, and the size of the hole distance can also be other distances. At the same time, one of the two connecting pieces 3 can be rotated to adjust the hole distance, or both connecting pieces 3 can be rotated at the same time to adjust the hole distance.

[0025] The spacing between the two countersunk through holes 302 can be switched by rotating the connecting piece 3 one hundred and eighty degrees; and after the head of the bolt is embedded in the countersunk head of the countersunk through hole 302 and passes through the countersunk through hole 302 and is locked on the connecting column of the outer lock shell 101, the outer lock shell 1, the inner lock shell 2 and the connecting piece 3 are locked and fixed together, thereby improving the disassembly and assembly efficiency; the spacing between the countersunk through holes 302 can be switched by rotating the connecting piece 3, so that the inner lock shell 2 and the connecting piece 3 are combined into a universal part, which can adapt to the specifications of two outer lock shells 1, reduce storage pressure, and reduce the labor intensity of the pre-packaging process of the lock body product.

[0026] As a preferred embodiment of the present invention, the connecting piece positioning hole 201 is a waist-shaped hole; the connecting piece 3 matches the connecting piece positioning hole 201; both ends of the connecting piece 3 are provided with semicircular arc surfaces 303; the line between the centers of the two semicircular arc surfaces 303 is the center line 304; the axis of the countersunk through hole 302 is set on the center line 304;

[0027] The waist-shaped hole is a symmetrical structure at both ends, so the connecting piece 3 can still be embedded in the waist-shaped hole and fixed after rotating 180 degrees;

[0028] The countersunk through hole 302 is arranged on the line connecting the centers of the circles, which can ensure that the connecting piece 3 can be aligned with another connecting column 101 after rotating 180 degrees.

[0029] As a preferred embodiment of the present invention, a positioning concave ring 201a is arranged around the end face of the connecting piece positioning hole 201; a convex ring 301 matching the positioning concave ring 201a is arranged on the connecting piece 3; the convex ring 301 is embedded in the positioning concave ring 201a; after the convex ring 301 is positioned in the positioning concave ring 201a, a stable support is formed for the connecting piece 3, which facilitates the positioning of the connecting piece 3 in the inner lock shell 2.

[0030] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An inner lock shell structure of a door lock shell, characterized in that: It comprises an inner lock shell (2); two connecting piece positioning holes (201) are provided on the inner lock shell (2); a connecting piece (3) is detachably connected to the connecting piece positioning hole (201); the connecting piece (3) can be connected to the connecting piece positioning hole (201) after being rotated 180 degrees; the rotation center axis of the connecting piece (3) is the shaft axis; The connecting piece (3) is provided with a countersunk through hole (302); the countersunk through hole (302) is arranged at a position deviating from the axis of the shaft center.

2. The inner lock shell structure of a door lock shell according to claim 1, characterized in that: The connection piece positioning hole (201) is a waist-shaped hole; the connection piece (3) matches the connection piece positioning hole (201); both ends of the connection piece (3) are provided with semicircular arc surfaces (303); the line connecting the centers of the two semicircular arc surfaces (303) is the center line (304); and the axis of the countersunk through hole (302) is arranged on the center line (304).

3. The inner lock shell structure of a door lock shell according to claim 2, characterized in that: A concave positioning ring (201a) is arranged around the end surface of the connection plate positioning hole (201); a convex ring (301) matching the concave positioning ring (201a) is arranged on the connection plate (3); and the convex ring (301) is embedded in the concave positioning ring (201a).

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