Lock shell for large lock

Abstract

The lock shell comprises an upper shell body and a rotating seat, the central axis of the upper shell body is eccentrically arranged relative to the central axis of the rotating seat, a positioning tongue piece and a positioning guide column are arranged in the upper shell body, a sliding hole is formed in the positioning tongue piece, a lock cylinder mounting hole is axially formed in the rotating seat along the central axis, and the positioning guide column is arranged in the lock cylinder mounting hole. The central axis of the sliding hole is perpendicular to the central axis of the lock cylinder mounting hole, the positioning guide column is located on the side, away from the lock cylinder mounting hole, of the positioning tongue piece, and the axis of the upper shell and the axis of the rotating base are eccentrically arranged, so that the internal space layout of the lock can be optimized, compactness is improved, and meanwhile a more flexible path is provided for movement of the lock tongue; the sliding hole of the positioning tongue piece is perpendicular to the lock cylinder installation hole, it is guaranteed that the movement direction is accurate when the spring bolt and the lock cylinder are in linkage, the clamping stagnation risk is reduced, the protruding positioning guide column can be matched with other parts, the alignment accuracy is enhanced when the lock is installed, and stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of locks, and more particularly to a lock case for large locks. Background Technology

[0002] In the design and manufacture of large locks, the structure and function of the lock case are crucial. Traditional lock case designs typically employ a coaxial structure, where the central axes of the upper housing and the rotating base coincide. While simple, this design presents several problems in practical applications. For instance, the coaxial structure can make the lock more susceptible to damage from external impacts, and the installation and positioning of the lock cylinder are less flexible, affecting the overall performance and security of the lock.

[0003] Furthermore, traditional lock case designs often have an unreasonable layout for the positioning plates and lock cylinder mounting holes, leading to problems such as inaccurate positioning and unstable lock cylinder installation during use. These issues not only affect the lifespan of the lock but also increase maintenance and replacement costs. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies, such as inaccurate positioning and unstable lock cylinder installation during lock use, by providing a lock shell for large locks.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a lock shell for large locks, comprising an upper shell and a rotating base, wherein the central axis of the upper shell is eccentrically arranged relative to the central axis of the rotating base, a positioning tongue and a positioning guide post are provided inside the upper shell, the positioning tongue has a sliding hole, the rotating base has a lock cylinder mounting hole along its central axis, the central axis of the sliding hole is perpendicular to the central axis of the lock cylinder mounting hole, and the positioning guide post is located on the side of the positioning tongue away from the lock cylinder mounting hole.

[0006] By adopting the above technical solution, the eccentric setting of the axis of the upper housing and the rotating seat can optimize the internal space layout of the lock and improve its compactness. At the same time, it provides a more flexible path for the movement of the bolt. The sliding hole of the positioning tongue is perpendicular to the mounting hole of the lock cylinder, ensuring that the movement direction of the bolt and the lock cylinder is accurate when they are linked, reducing the risk of jamming. The protruding positioning guide post can cooperate with other components (such as the door frame) to enhance the alignment accuracy and improve the stability of the lock during installation.

[0007] The present invention is further configured such that: a lock cylinder mounting cavity is provided at the end of the rotating seat away from the upper housing, and the lock cylinder mounting cavity is connected to the lock cylinder mounting hole.

[0008] By adopting the above technical solution, the lock cylinder installation cavity is connected to the lock cylinder installation hole, which simplifies the lock cylinder installation process, facilitates maintenance and replacement, and enhances the connection strength between the lock cylinder and the rotating seat.

[0009] The present invention is further configured such that: the rotating seat has a bolt mounting hole communicating with the lock cylinder mounting cavity, and the central axis of the bolt mounting hole is perpendicular to the central axis of the rotating seat.

[0010] By adopting the above technical solution, the bolt mounting holes are set vertically: the bolt installation direction is perpendicular to the axis of the rotating seat, which can resist the rotational torque during the use of the lock, prevent the bolts from loosening, and improve the overall structure's torsional resistance.

[0011] The present invention is further configured such that the rotating seat is provided with a plurality of bolt mounting holes at even intervals.

[0012] By adopting the above technical solution, the bolt holes are evenly spaced: the multiple bolt holes are evenly distributed, making the rotating seat more evenly stressed, avoiding local stress concentration, and enhancing the connection reliability between the lock and the mounting surface.

[0013] The present invention is further configured such that: the rotating seat includes a guide section and a mounting section, the guide section is connected to the upper housing, and the bolt mounting hole is formed on the mounting section.

[0014] By adopting the above technical solution, the segmented design divides the rotating seat into a guide section and an installation section. The guide section ensures precise docking with the upper shell, while the installation section provides bolt fixing function. The division of labor is clear, reducing assembly errors.

[0015] The present invention is further configured such that: the positioning guide post has a plurality of protrusions, and the plurality of positioning guide posts are spaced apart.

[0016] By adopting the above technical solution, multiple guide posts spaced apart form multi-point positioning, preventing the bolt from shifting due to force on one side and further improving the stability of the bolt movement.

[0017] The present invention is further configured such that the positioning tongue, positioning guide post, upper shell and rotating seat are all integrally formed.

[0018] By adopting the above technical solutions, one-piece molding reduces the number of parts and assembly steps, lowers processing costs, eliminates connection gaps, and improves the overall structural strength and sealing performance.

[0019] The present invention is further configured such that: the upper housing is C-shaped, and the C-shaped opening of the upper housing is positioned opposite to the lock cylinder mounting hole.

[0020] By adopting the above technical solution, the C-shaped housing design has an opening facing the lock cylinder mounting hole, which facilitates the insertion and operation of the lock cylinder, while maintaining the housing strength and taking into account both lightweight and deformation resistance.

[0021] The present invention is further provided with an impact-resistant layer at the connection between the upper shell and the rotating seat.

[0022] By adopting the above technical solution, the impact-resistant layer adds impact-resistant materials (such as rubber or composite materials) to the connection parts to absorb vibration energy, prevent structural fatigue or cracking caused by long-term use, and extend the life of the lock.

[0023] This utility model has significant technical effects due to the adoption of the above technical solutions: through innovations such as eccentric design, segmented structure, multi-point positioning and integrated molding, the lock shell has significantly improved in terms of space utilization, assembly accuracy, torsional strength and impact resistance, and is especially suitable for high-load and high-frequency use scenarios of large locks. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a lock case structure for a large lock in one embodiment;

[0025] Figure 2 This is a schematic diagram of another direction of the lock case structure for a large lock in one embodiment.

[0026] The parts referred to by the numbers in the above attached figures are as follows: 1. Upper housing; 2. Rotating seat; 21. Guide section; 22. Mounting section; 3. Positioning tongue; 31. Sliding hole; 4. Positioning guide post; 5. Lock cylinder mounting hole; 6. Lock cylinder mounting cavity; 7. Bolt mounting hole; 8. Impact-resistant layer. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] Example:

[0029] A lock case for large locks, see [link / reference] Figure 1 and Figure 2 The device includes an upper housing and a rotating base. The rotating base includes a guide section and a mounting section. The guide section is connected to the upper housing. The mounting section is located on the side of the guide section away from the upper housing. The central axis of the upper housing is eccentrically positioned relative to the central axis of the rotating base. The rotating base has a lock cylinder mounting hole along its central axis, which penetrates the guide section and the mounting section. A lock cylinder mounting cavity is formed at the end of the rotating base away from the upper housing, and the lock cylinder mounting cavity communicates with the lock cylinder mounting hole. The rotating base has bolt mounting holes that communicate with the lock cylinder mounting cavity. The central axis of the bolt mounting holes is perpendicular to the central axis of the rotating base. Several bolt mounting holes are provided, and they are evenly spaced. All bolt mounting holes are located on the mounting section. In this embodiment, three bolt mounting holes are provided, arranged in a circular array. An impact-resistant layer is provided at the connection between the upper housing and the rotating base.

[0030] The upper housing has a C-shaped columnar structure. The C-shaped opening of the upper housing is positioned opposite the lock cylinder mounting hole. The upper housing contains a positioning tongue and positioning guide posts. A sliding hole is opened at the center of the positioning tongue, which is used for the sliding of the lock pin. The sliding of the lock pin can drive the lock cylinder and the lock shell into a locked state. The central axis of the sliding hole is perpendicular to the central axis of the lock cylinder mounting hole. The perpendicularity of the two facilitates the sliding of the lock pin. The sliding hole faces the C-shaped opening of the upper housing. The advantage of this design is that it is easy to process the sliding hole. The positioning guide posts are located on the side of the positioning tongue away from the lock cylinder mounting hole. Several positioning guide posts are protruding and spaced apart. In this embodiment, two positioning guide posts are provided. Multiple positioning guide posts can increase the positioning progress with other accessories.

Claims

1. A lock case for large locks, characterized in that, The device includes an upper housing (1) and a rotating seat (2). The central axis of the upper housing (1) is eccentrically set relative to the central axis of the rotating seat (2). The upper housing (1) is provided with a positioning tongue (3) and a positioning guide post (4). The positioning tongue (3) has a sliding hole (31). The rotating seat (2) has a lock cylinder mounting hole (5) along its central axis. The central axis of the sliding hole (31) is perpendicular to the central axis of the lock cylinder mounting hole (5). The positioning guide post (4) is located on the side of the positioning tongue (3) away from the lock cylinder mounting hole (5).

2. A lock case for large locks according to claim 1, characterized in that, The rotating base (2) has a lock cylinder mounting cavity (6) at the end away from the upper housing (1), and the lock cylinder mounting cavity (6) is connected to the lock cylinder mounting hole (5).

3. A lock case for large locks according to claim 2, characterized in that, The rotating seat (2) has a bolt mounting hole (7) that communicates with the lock cylinder mounting cavity (6), and the central axis of the bolt mounting hole (7) is perpendicular to the central axis of the rotating seat (2).

4. A lock case for large locks according to claim 3, characterized in that, The rotating base (2) is provided with several bolt mounting holes (7) at even intervals.

5. A lock case for large locks according to claim 4, characterized in that, The rotating seat (2) includes a guide section (21) and a mounting section (22). The guide section (21) is connected to the upper housing (1), and the bolt mounting hole (7) is opened on the mounting section (22).

6. A lock case for large locks according to claim 1, characterized in that, The positioning guide post (4) has several protrusions, and the several positioning guide posts (4) are spaced apart.

7. A lock case for large locks according to claim 1, characterized in that, The positioning tongue (3), positioning guide post (4), upper shell (1) and rotating seat (2) are all integrally formed.

8. A lock case for large locks according to claim 1, characterized in that, The upper housing (1) is C-shaped, and the C-shaped opening of the upper housing (1) is positioned opposite to the lock cylinder mounting hole (5).

9. A lock case for large locks according to claim 1, characterized in that, The connection between the upper housing (1) and the rotating seat (2) is provided with an impact-resistant layer (8).

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