A turning structure of a house door lock

Abstract

The utility model discloses a kind of gyration structures of house door lock, including front handle and rear handle and the linkage of front handle and rear handle linkage rod, one end of linkage rod is located in the inside of front handle and is connected with the lock core inside the inside of front handle, the other end is located in rear handle, linkage rod is fixedly sleeved with rotating sleeve and the both ends of rotating sleeve are respectively inserted into the steering shaft inside being equipped with in front handle and rear handle, rotating sleeve and the insertion of steering shaft are equipped with spring, one end of steering shaft is connected with positioning steering head and two groups of positioning steering head are respectively located in front handle and rear handle, reset handle is realized by the cooperation of spring and rotating sleeve, steering shaft, when handle rotates, spring occurs elastic deformation and stores potential energy, after external force disappears, spring releases elastic potential energy, can stably, efficiently reverse push rotating sleeve and return to initial position, drive linkage rod and front, rear handle reset, whole process is smooth and natural, greatly improve the operation experience of user.

Description

Technical Field

[0001] This utility model belongs to the field of door lock technology, specifically relating to a rotary structure for a room door lock. Background Technology

[0002] With the ever-increasing demand for security and convenience in modern homes, door locks, as a core component for ensuring family safety, have their structural design directly affecting user experience and security protection. As people use door locks more frequently, the automatic reset function of door lock handles has become an important indicator for measuring product performance.

[0003] Currently, most door locks on the market use mechanical gear transmission for the handle reset mechanism. However, there is a gap error in the meshing transmission between the gears. After long-term use, the gears wear more and the gap increases, causing the handle to jam when turned. The reset process is not smooth and seriously affects the user experience. In addition, this type of mechanical gear transmission structure is usually more complex and has a higher production cost. Once a failure occurs, the repair is difficult and costly. Utility Model Content

[0004] The purpose of this utility model is to provide a rotary structure for a door lock to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary structure for a door lock, including a front handle and a rear handle, and a linkage rod that links the front handle and the rear handle;

[0006] One end of the linkage rod is located inside the front handle and connected to the lock cylinder inside the front handle, and the other end is located inside the rear handle;

[0007] A rotating sleeve is fixedly fitted on the linkage rod, and the two ends of the rotating sleeve are respectively inserted into the steering shaft provided in the front handle and the rear handle. A spring is provided at the insertion point of the rotating sleeve and the steering shaft.

[0008] When the front and rear handlebars are rotated, the linkage rod drives the rotating sleeve to rotate within the steering shaft. The spring undergoes elastic deformation and stores potential energy. After the external force disappears, the spring releases its elastic potential energy, pushing the rotating sleeve back to its initial position, thereby resetting the linkage rod and the front and rear handlebars.

[0009] Preferably, one end of the steering shaft is connected to a positioning steering head, and two sets of positioning steering heads are respectively located in the front handlebar and the rear handlebar.

[0010] Preferably, one end of the positioning and steering head is connected to a connecting piece, and the other ends of the two sets of connecting pieces are connected to the lock cylinder and the button steering head.

[0011] Preferably, the connection points of the front handle and the rear handle to the steering shaft are both connected to a door cover, and one end of the steering shaft rotates through the door cover.

[0012] Preferably, a shim is provided at the point where the steering shaft rotates with the door cover.

[0013] Preferably, one side of both the front handle and the rear handle is connected to an outer cover, and two sets of buffer pads are provided between the outer cover and the front handle and the rear handle.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The handle is reset by the cooperation of the spring, the rotating sleeve and the steering shaft. When the handle is rotated, the spring undergoes elastic deformation to store potential energy. After the external force disappears, the spring releases elastic potential energy, which can stably and efficiently push the rotating sleeve back to the initial position, thereby driving the linkage rod and the front and rear handles to reset. The whole process is smooth and natural, which greatly improves the user's operating experience.

[0016] (2) The structure is simple and clear through the core components such as linkage rod, rotating sleeve, spring and steering shaft. This simple structure reduces the number of production processes and parts, and reduces costs and manufacturing costs. At the same time, the simple structure makes the product assembly more convenient and faster, and further saves labor costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model after the front handle and rear handle have been disassembled;

[0019] Figure 3 This is an exploded view of the present invention.

[0020] In the diagram: 1. Front handle; 2. Rear handle; 3. Linkage rod; 4. Rotary sleeve; 5. Steering shaft; 6. Spring; 7. Positioning steering head; 8. Connecting piece; 9. Lock cylinder; 10. Button steering head; 11. Door cover; 12. Gasket; 13. Outer cover; 14. Buffer pad. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] This utility model provides, for example Figure 1-3 The rotating structure of a door lock shown includes a front handle 1 and a rear handle 2, and a linkage rod 3 that links the front handle 1 and the rear handle 2.

[0024] One end of the linkage rod 3 is located inside the front handle 1 and connected to the lock cylinder 9 inside the front handle 1, and the other end is located inside the rear handle 2.

[0025] A rotating sleeve 4 is fixedly fitted on the linkage rod 3, and the two ends of the rotating sleeve 4 are respectively inserted into the steering shaft 5 provided in the front handle 1 and the rear handle 2. A spring piece 6 is provided at the insertion point of the rotating sleeve 4 and the steering shaft 5.

[0026] When the front handle 1 and the rear handle 2 are rotated, the linkage rod 3 drives the rotating sleeve 4 to rotate within the steering shaft 5. The spring piece 6 undergoes elastic deformation and stores potential energy. After the external force disappears, the spring piece 6 releases its elastic potential energy and pushes the rotating sleeve 4 back to its initial position, thereby resetting the linkage rod 3, the front handle 1, and the rear handle 2.

[0027] One end of the steering shaft 5 is connected to a positioning steering head 7, and two sets of positioning steering heads 7 are respectively located in the front handlebar 1 and the rear handlebar 2.

[0028] One end of the positioning and turning head 7 is connected to a connecting piece 8, and the other end of the two sets of connecting pieces 8 is connected to the lock cylinder 9 and the button turning head 10. The connecting piece 8 is a key component connecting the positioning and turning head 7, the lock cylinder 9 and the button turning head 10, and can accurately transmit the rotation action of the positioning and turning head 7 to the lock cylinder 9 and the button turning head 10.

[0029] Both the front handle 1 and the rear handle 2 are connected to the steering shaft 5 with a door cover 11, and one end of the steering shaft 5 rotates through the door cover 11.

[0030] A gasket 12 is provided at the rotation point of the steering shaft 5 and the door cover 11. The gasket 12 is made of wear-resistant polytetrafluoroethylene. During the rotation of the steering shaft 5 and the door cover 11, the gasket 12 acts as an intermediate medium, separating the metal surfaces that were originally in direct contact, effectively reducing the coefficient of friction between the two, significantly reducing the wear of the rotating parts of the steering shaft 5 and the door cover 11, and extending the service life of these two components and the entire structure.

[0031] Both the front handle 1 and the rear handle 2 are connected to an outer cover 13 on one side, and two sets of buffer pads 14 are provided between the outer cover 13 and the front handle 1 and the rear handle 2. The outer cover 13 covers the internal parts of the front handle 1 and the rear handle 2, so as to prevent dust, impurities and other foreign objects from easily entering the door lock in daily life, causing wear and affecting the normal operation of the parts.

[0032] The door lock's rotary mechanism works as follows: when the user applies external force to rotate the front handle 1 or the rear handle 2, the force is first applied to the handle. Since the front handle 1 contains a lock cylinder 9, the linkage rod 3 connected to the lock cylinder 9 will begin to rotate under the drive of the handle. The linkage rod 3, as a key component of the transmission, has a rotating sleeve 4 fixedly mounted on it. The two ends of the rotating sleeve 4 are precisely inserted into the steering shafts 5 located inside the front handle 1 and the rear handle 2, respectively. This connection method allows the rotation of the linkage rod 3 to be precisely transmitted to the rotating sleeve 4, thereby driving the rotating sleeve 4 to rotate synchronously within the steering shaft 5. A spring piece 6 is provided at the insertion point between the rotating sleeve 4 and the steering shaft 5. The spring piece 6 uses... Made of highly elastic and high-strength polyurethane elastomer, it possesses excellent deformation and recovery properties. As the rotating sleeve 4 rotates, the spring piece 6 is subjected to compression and friction from the rotating sleeve 4, resulting in elastic deformation. During this process, according to the principle of energy conversion, the external force does work on the spring piece 6, which converts this energy into its own elastic potential energy and stores it. When the external force applied to the handle by the user disappears, the spring piece 6, in its elastically deformed state, follows the properties of the elastic material and begins to release the previously stored elastic potential energy. When the spring piece 6 releases its elastic potential energy, it generates a reverse thrust, which acts directly on the rotating sleeve 4. Since the rotating sleeve 4 and the linkage rod 3 are fixedly connected, when the rotating sleeve 4 rotates back to its initial position under the thrust of the spring piece 6, it will drive the linkage rod 3 to rotate as well. The rotation of the linkage rod 3 will then sequentially drive the front handle 1 and the rear handle 2 to reset, returning the door lock handle to its initial state, thus completing the rotation and preparing it for the next use.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary structure for a door lock, comprising a linkage rod (3) for linking a front handle (1) and a rear handle (2) to the front handle (1) and the rear handle (2), characterized in that: One end of the linkage rod (3) is located inside the front handle (1) and connected to the lock cylinder (9) inside the front handle (1), and the other end is located inside the rear handle (2); A rotating sleeve (4) is fixedly fitted on the linkage rod (3), and the two ends of the rotating sleeve (4) are respectively inserted into the steering shaft (5) provided in the front handle (1) and the rear handle (2). A spring piece (6) is provided at the insertion point of the rotating sleeve (4) and the steering shaft (5). When the front handle (1) and the rear handle (2) rotate, the linkage rod (3) drives the rotating sleeve (4) to rotate inside the steering shaft (5). The spring (6) undergoes elastic deformation and stores potential energy. After the external force disappears, the spring (6) releases the elastic potential energy and pushes the rotating sleeve (4) back to the initial position, driving the linkage rod (3), the front handle (1), and the rear handle (2) to reset.

2. The rotary structure of a door lock according to claim 1, characterized in that: One end of the steering shaft (5) is connected to a positioning steering head (7), and two sets of positioning steering heads (7) are respectively located in the front handle (1) and the rear handle (2).

3. The rotary structure of a door lock according to claim 2, characterized in that: One end of the positioning and steering head (7) is connected to a connecting piece (8), and the other end of the two sets of connecting pieces (8) is connected to the lock cylinder (9) and the button steering head (10).

4. The rotary structure of a door lock according to claim 1, characterized in that: The front handle (1) and the rear handle (2) are connected to the steering shaft (5) with a door cover (11) and one end of the steering shaft (5) rotates through the door cover (11).

5. The rotary structure of a door lock according to claim 4, characterized in that: A shim (12) is provided at the point where the steering shaft (5) rotates with the door cover (11).

6. The rotary structure of a door lock according to claim 1, characterized in that: The front handle (1) and the rear handle (2) are each connected to an outer cover (13) on one side, and two sets of buffer pads (14) are provided between the outer cover (13) and the front handle (1) and the rear handle (2).

Images