An outer ring structure of a split ring

Abstract

The utility model discloses an outer ring structure of a split ring, comprising a cover plate and an inner liner, wherein a receiving cavity matched with the inner liner is arranged at the lower end of the cover plate; the upper end surface of the inner liner is upwardly protruded and provided with a plurality of convex points, and the outer side wall of the inner liner is outwardly protruded and provided with a plurality of convex blocks, and the plurality of convex blocks are circumferentially spaced; the inner liner is placed in the receiving cavity at the lower end of the cover plate, and the convex points abut against the top wall of the cover plate, so that there is a gap between the upper end surface of the inner liner and the top wall of the cover plate; the convex blocks are interference-fitted with the inner side wall of the receiving cavity, and a gap is formed between the outer side wall of the inner liner and the inner side wall of the cover plate; after the inner liner and the cover plate are assembled into an outer ring, they can be electroplated as a whole, and the inner side wall of the cover plate and the outer side wall of the liner can be completely electroplated, that is, the outer ring can be assembled first and then electroplated together, saving the electroplating cost of the outer ring; the cover plate and the inner liner can be designed and produced separately, and the outer ring can be electroplated as a whole, thereby reducing the production cost of the outer ring of the split ring.

Description

Technical Field

[0001] The utility model relates to the field of door locks, and more specifically, to an outer ring structure of a split ring. Background Art

[0002] As the name implies, a door lock is a safety device used to lock a door to prevent others from opening the door. There are many styles of door locks on the market, and split locks are the most common type of door locks.

[0003] The split lock is usually composed of a split ring and a handle. The split ring includes an inner ring and an outer ring. Usually, people install the handle on the inner ring, and then fix the handle and the inner ring on the door panel through the fixed installation holes on the inner ring. Finally, in order to cover the internal structure of the door lock and improve the appearance of the door lock, the outer ring needs to be used for covering;

[0004] In order to save the production cost of the outer ring, the outer ring is designed to be split, including a cover plate and an inner lining produced separately with different materials, so that the inner lining is produced with a lower cost material to reduce the production cost of the outer ring; but the outer ring currently adopts a split design and needs to be electroplated separately for the cover plate and the inner lining, which increases the electroplating cost of the outer ring, thereby indirectly increasing the production cost of the outer ring. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an outer ring structure of a split ring.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An outer ring structure of a split ring, comprising a cover plate and an inner liner, wherein the lower end of the cover plate is provided with a receiving cavity adapted to the inner liner; the upper end surface of the inner liner is upwardly protruded and provided with a plurality of convex points, and the outer side wall of the inner liner is outwardly protruded and provided with a plurality of convex blocks, and the plurality of convex blocks are circumferentially spaced;

[0008] The lining is placed in the accommodating cavity at the lower end of the cover plate, and the protrusion abuts against the top wall of the cover plate, so that a gap exists between the upper end surface of the lining and the top wall of the cover plate; the protrusion is interference fit with the inner wall of the accommodating cavity, and a gap exists between the outer wall of the lining and the inner wall of the cover plate.

[0009] The utility model is further configured that: the number of the protrusions is four, wherein the four protrusions are evenly spaced and arranged on the outer side wall of the liner.

[0010] The utility model is further configured that: the number of the convex points is four, wherein the four convex points are evenly spaced and arranged on the upper end surface of the lining.

[0011] The utility model is further provided that: the cover plate is provided with an external mounting hole for mounting and fixing.

[0012] The utility model is further provided that: the inner lining is provided with an inner mounting hole corresponding to the outer mounting hole.

[0013] Beneficial effects of the utility model: the upper end surface of the outer ring liner of the utility model is upwardly protruded and provided with a plurality of convex points, and the outer side wall of the liner is outwardly protruded and provided with a plurality of convex blocks; the liner is placed in the accommodating cavity at the lower end of the cover plate, and the convex points are against the top wall of the cover plate, so that there is a gap between the upper end surface of the liner and the top wall of the cover plate; the convex blocks are interference fit with the inner side wall of the accommodating cavity, so that the outer side wall of the liner and the inner side wall of the cover plate are tightly matched, so that the two can be firmly fixed together; and there is a gap between the outer side wall of the liner and the inner side wall of the cover plate. Gap; for the assembled outer ring, there are gaps between the upper end face of the lining and the top wall of the cover plate, and between the outer wall of the lining and the inner wall of the cover plate; after the lining and the cover plate are assembled into the outer ring, they can be electroplated as a whole, so that the plating liquid can flow between the gaps, and the inner wall of the cover plate and the outer wall of the lining can be completely electroplated, that is, the outer ring can be assembled first, and then electroplated as a whole, saving the electroplating cost of the outer ring; the cover plate and the lining can be designed and produced separately, and the outer ring can be electroplated as a whole, thereby effectively reducing the production cost of the split ring and the outer ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the outer ring structure of a split ring of the utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the outer ring structure of a split ring of the utility model. Figure 2 ;

[0016] Figure 3 This is a structural schematic diagram of a cover plate with an outer ring structure of a split ring according to the utility model;

[0017] Figure 4 This is a structural schematic diagram of an inner lining of an outer ring structure of a split ring of the utility model;

[0018] Explanation of the reference numerals: 1. Cover plate; 11. Accommodating cavity; 12. External mounting hole; 2. Inner lining; 21. Bump; 22. Bump; 23. Internal mounting hole. DETAILED DESCRIPTION

[0019] See attached Figures 1 to 4 The outer ring structure of a split ring of the utility model is further described in detail.

[0020] An outer ring structure of a split ring, comprising a cover plate 1 and an inner liner 2, wherein the lower end of the cover plate 1 is provided with an accommodation cavity 11 adapted to the inner liner 2, wherein the height of the inner liner 2 is less than the depth of the accommodation cavity 11 of the cover plate 1; the upper end surface of the inner liner 2 is provided with a plurality of convex points 21 protruding upward, and the outer side wall of the inner liner 2 is provided with a plurality of convex blocks 22 protruding outward, and the plurality of convex blocks 22 are arranged at intervals in the circumferential direction;

[0021] The lining 2 is placed in the accommodating cavity 11 at the lower end of the cover plate 1, and the convex point 21 abuts against the top wall of the cover plate 1, so that there is a gap between the upper end surface of the lining 2 and the top wall of the cover plate 1; the convex block 22 is interference-fitted with the inner side wall of the accommodating cavity 11, so that the outer side wall of the lining 2 and the inner side wall of the cover plate 1 are tightly matched, so that the two can be firmly fixed together; and there is a gap between the outer side wall of the lining 2 and the inner side wall of the cover plate 1;

[0022] Because the assembled outer ring has gaps between the upper end surface of the lining 2 and the top wall of the cover plate 1, and between the outer wall of the lining 2 and the inner wall of the cover plate 1; after the lining 2 and the cover plate 1 are assembled into an outer ring, they can be electroplated as a whole, so that the plating liquid can flow between the gaps, and the inner wall of the cover plate 1 and the outer wall of the lining 2 can be completely electroplated, that is, the outer ring can be assembled first, and then electroplated as a whole, saving the electroplating cost of the outer ring; the cover plate 1 and the lining 2 can be designed and produced separately, and the outer ring can be electroplated as a whole, thereby effectively reducing the production cost of the split ring and the outer ring.

[0023] The number of the protrusions 22 is four, wherein the four protrusions 22 are evenly spaced on the outer wall of the lining 2, so that the lining 2 can be more firmly placed in the accommodating cavity 11, thereby improving the structural stability of the outer ring; the number of the protrusions 21 is four, wherein the four protrusions 21 are evenly spaced on the upper end surface of the lining 2; wherein the four protrusions 21 support the cover plate 1, thereby preventing the lining 2 and the cover plate 1 from tilting.

[0024] The cover plate 1 is provided with an outer mounting hole 12 for installation and fixation, and the inner lining 2 is provided with an inner mounting hole 23 corresponding to the outer mounting hole 12; that is, after the installation of the inner ring with the door handle is completed, the outer ring is sleeved on the inner ring, and the outer ring is fixed on the inner ring after the fastening screws pass through the outer mounting hole 12 and the inner mounting hole 23 in sequence.

[0025] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An outer ring structure of a split ring, comprising a cover plate and an inner liner, wherein the lower end of the cover plate is provided with an accommodation cavity adapted to the inner liner; wherein: The upper end surface of the inner liner is upwardly protruding and provided with a plurality of convex points, and the outer side wall of the inner liner is outwardly protruding and provided with a plurality of convex blocks, and the plurality of convex blocks are circumferentially spaced; The lining is placed in the accommodating cavity at the lower end of the cover plate, and the protrusion abuts against the top wall of the cover plate, so that a gap exists between the upper end surface of the lining and the top wall of the cover plate; the protrusion is interference fit with the inner wall of the accommodating cavity, and a gap exists between the outer wall of the lining and the inner wall of the cover plate.

2. The outer ring structure of the split ring according to claim 1 is characterized in that: The number of the protrusions is four, wherein the four protrusions are evenly spaced and arranged on the outer side wall of the liner.

3. The outer ring structure of the split ring according to claim 2 is characterized in that: The number of the convex points is four, wherein the four convex points are evenly spaced and arranged on the upper end surface of the liner.

4. The outer ring structure of a split ring according to claim 1, 2 or 3, characterized in that: The cover plate is provided with an external mounting hole for mounting and fixing.

5. The outer ring structure of the split ring according to claim 4 is characterized in that: The inner lining is provided with inner mounting holes corresponding to the outer mounting holes.

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