A robust mounting structure for the inner and outer rings of a lock

Abstract

This utility model discloses a robust mounting structure for the inner and outer rings of a lock, including an inner ring, an outer ring, a connecting tube, and a sleeve. The connecting tube and sleeve are respectively positioned between the inner and outer rings in a corresponding manner. The connecting tube is threaded and fixed to the inner ring, and the sleeve is fixedly connected to the outer ring. A limiting hole, which slides through the sleeve and is adapted to slide with the connecting tube, is provided inside the sleeve. One end of the connecting tube passes through the limiting hole in the sleeve. A fixing screw is provided inside the outer ring, and the fixing screw passes through the limiting hole in the sleeve and into the connecting tube for threaded fixation. This utility model, by incorporating a sleeve, improves the stability between the fixing screw and the connecting tube, reducing the likelihood of wobbling between the inner and outer rings and extending the lifespan of the lock.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and more specifically, it relates to a robust mounting structure for the inner and outer rings of a lock. Background Technology

[0002] A door lock, as the name suggests, is a device used to lock a door to prevent unauthorized entry. Existing door locks generally consist of a lock body and a lock cylinder installed inside the door, with door handles installed on both the inner and outer sides. The door handles are secured by an inner and outer ring. During installation, the inner and outer rings are typically connected using a connecting tube and fixing screws. The connecting tube is screwed onto the inner ring, and then the fixing screw is threaded through the outer ring to connect to the connecting tube on the inner ring. This allows for installation on doors of different thicknesses. However, this installation method is prone to wobbling at the connection point between the connecting tube and the fixing screw, leading to instability between the inner and outer rings. With prolonged use, the door handle may shift, affecting its lifespan. Therefore, improvements are urgently needed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a robust installation structure for the inner and outer rings of a lock. By setting a sleeve, the stability between the fixing screw and the connecting tube can be improved, making it less likely for the inner and outer rings to wobble, thereby increasing the service life of the door lock.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a robust mounting structure for the inner and outer rings of a lock, comprising an inner ring, an outer ring, a connecting tube, and a sleeve. The connecting tube and the sleeve are respectively disposed between the inner and outer rings in a corresponding manner. The connecting tube is threaded and fixed to the inner ring, and the sleeve is fixedly connected to the outer ring. A limiting hole that slides and adapts to the connecting tube is provided through the tube body of the sleeve. One end of the connecting tube passes through the limiting hole of the sleeve. A fixing screw is provided in the outer ring, and the fixing screw passes through the limiting hole of the sleeve and into the connecting tube for threaded fixation.

[0005] The present invention is further configured such that: a connector with a diameter smaller than that of the tube sleeve is provided at one end near the outer ring; a fixing hole for the connector to pass through is provided on the outer ring; and one end of the connector passing through the fixing hole expands outward and is fixed on the outer ring.

[0006] The present invention is further configured such that the sleeve can be fixedly connected to the outer ring by welding or threaded connection.

[0007] The present invention is further configured such that: a first fixing seat is provided on the inner ring for fixing the connecting pipe thread.

[0008] The present invention is further configured to include a decorative cover located within the inner ring, the decorative cover having a relief groove adapted to the first fixing seat, the inner ring having a second fixing seat, and the decorative cover being fixedly connected to the second fixing seat by fastening screws.

[0009] The present invention is further configured such that the sleeve between the inner and outer rings can be used for surface mounting or concealed mounting of the door lock.

[0010] By adopting the above technical solution, the installation of the inner and outer rings in this practical device can improve the stability between the fixing screws and the connecting pipe by setting the sleeve, making it less likely for the inner and outer rings to wobble, thus improving the service life of the door lock. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is an exploded view of the structure of this utility model.

[0013] 1. Inner ring; 10. First fixing seat; 11. Second fixing seat; 2. Outer ring; 3. Connecting pipe; 4. Pipe sleeve; 40. Limiting hole; 41. Connector; 5. Fixing screw; 6. Decorative cover; 60. Leaving groove; 7. Fastening screw. Detailed Implementation

[0014] Reference Figures 1 to 2 The embodiments of this utility model will be further described below.

[0015] This utility model discloses a robust mounting structure for the inner and outer rings of a lock, including an inner ring 1, an outer ring 2, a connecting tube 3, and a sleeve 4. The connecting tube 3 and the sleeve 4 are respectively positioned between the inner ring 1 and the outer ring 2. The connecting tube 3 is threaded and fixed to the inner ring 1, and the sleeve 4 is fixedly connected to the outer ring 2. A limiting hole 40 is provided through the tube body of the sleeve 4, which is slidably adapted to the connecting tube 3. One end of the connecting tube 3 passes through the limiting hole 40 of the sleeve 4. A fixing screw 5 is provided in the outer ring 2. The fixing screw 5 passes through the limiting hole 40 of the sleeve 4 and into the connecting tube 3 for threaded fixation.

[0016] Furthermore, the sleeve 4 has a connector 41 with a diameter smaller than that of the sleeve 4 at one end near the outer ring 2. The outer ring 2 has a fixing hole for the connector 41 to pass through. The end of the connector 41 that passes through the fixing hole expands outward and is fixed to the outer ring 2. The connection of the outer ring 2 with the connector 41 ensures stable installation of the sleeve 4. During installation, the connector 41 can be expanded outward and fixed to the outer ring 2 by pressing it with a push rod, making the installation convenient and quick.

[0017] Furthermore, the sleeve 4 can be fixedly connected to the outer ring 2 by welding or threading. Welding or threading allows the sleeve 4 to be easily installed on the outer ring 2.

[0018] Furthermore, the inner ring 1 is provided with a first fixing seat 10 for threaded fixing of the connecting pipe 3.

[0019] Furthermore, it also includes a decorative cover 6 located inside the inner ring 1. The decorative cover 6 is provided with a relief groove 60 that is adapted to the first fixing seat 10. The inner ring 1 is provided with a second fixing seat 11. The decorative cover 6 is fixedly connected to the second fixing seat 11 by fastening screws 7. The decorative cover 6 improves the aesthetics of the inner ring 1 and also prevents the inner ring 1 from scratching the door.

[0020] Furthermore, the sleeve 4 between the inner ring 1 and the outer ring 2 can be used for surface mounting or concealed mounting of the door lock.

[0021] Working principle: When installing the inner and outer rings of this utility model, firstly, screw the connecting tube 3 onto the first fixing seat 10 of the outer ring 2. Then, hold the inner ring 1 and insert the tube sleeve 4 on the inner ring 1 into the connecting tube 3, so that the connecting tube 3 will slide into the limiting hole 40 of the tube sleeve 4. The sliding depth of the connecting tube 3 depends on the thickness of the door panel. Then, the fixing screw 5 can be inserted into the limiting hole 40 of the tube sleeve 4 and threaded to fix the connecting tube 3 inside the tube sleeve 4. This will firmly fix the inner ring 1 and the outer ring 2 to the door panel. After the inner and outer rings are fixed, the tube sleeve 4 can limit the connecting tube 3, which can prevent the connecting tube 3 from shaking up and down, improve the stability of the inner and outer rings after installation, and play a supporting role.

[0022] The practical inner and outer ring installation method improves the stability between the fixing screw 5 and the connecting pipe 3 by setting the sleeve 4, making it less likely for the inner ring 1 and the outer ring 2 to wobble, thus increasing the service life of the door lock.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A robust mounting structure for the inner and outer rings of a lock, characterized in that: The device includes an inner ring, an outer ring, a connecting pipe, and a sleeve. The connecting pipe and the sleeve are respectively positioned between the inner and outer rings. The connecting pipe is threaded and fixed to the inner ring, and the sleeve is fixedly connected to the outer ring. A limiting hole that slides through the sleeve and is adapted to slide with the connecting pipe is provided. One end of the connecting pipe passes through the limiting hole of the sleeve. A fixing screw is provided in the outer ring. The fixing screw passes through the limiting hole of the sleeve and into the connecting pipe for threaded fixation.

2. The lock assembly of claim 1, wherein: The tube sleeve has a connector with a diameter smaller than that of the tube sleeve at one end near the outer ring. The outer ring has a fixing hole for the connector to pass through. The end of the connector that passes through the fixing hole expands outward and is fixed to the outer ring.

3. The secure mounting structure for the inner and outer rings of a lock according to claim 1, characterized in that: The sleeve can be fixedly connected to the outer ring by welding or threaded connection.

4. The lock assembly of claim 1 wherein: the inner and outer rings are secured to the housing by a plurality of fasteners. The inner ring is provided with a first fixing seat for connecting pipe thread engagement and fixation.

5. The lock assembly of claim 4, wherein: the inner and outer rings are secured to the housing by a plurality of fasteners. It also includes a decorative cover located within the inner ring, the decorative cover having a relief groove adapted to the first fixing seat, the inner ring having a second fixing seat, and the decorative cover being fixedly connected to the second fixing seat by fastening screws.

6. The lock assembly of claim 1 wherein: the inner and outer rings are secured to the housing by a plurality of fasteners. The sleeve between the inner and outer rings can be used for surface or concealed installation of the door lock.

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