Cylinder lock adjusting bolt mechanism

Abstract

The application relates to a cylindrical lock adjusting steel bolt mechanism, which is designed to solve the technical problems of inconvenient production assembly and use adjustment, high cost and small application range of the existing similar products. The base of the adjusting steel bolt mechanism is internally provided with a rotating shaft, one end of the rotating shaft extends out of the bottom of the base, the end of the rotating shaft is connected with one end of a locking screw extending out of a sleeve, an opening is arranged at the top end corner of one side of the sleeve, one end of a steel bolt is provided with a steel bolt threaded hole, the other end of the steel bolt extends out of the opening of the sleeve, the outer threaded section of one end of an adjusting screw is connected with the steel bolt threaded hole of the steel bolt, the adjusting screw and the steel bolt are integrated, the locking screw is arranged in the central hole of the adjusting screw, the steel bolt and the adjusting screw are arranged in the sleeve through the locking screw, the outer hexagon is arranged on the end head of the adjusting screw, the end head plane of the adjusting screw is larger than the top hole diameter of the sleeve, the steel bolt extending out of the sleeve is limited in the opening of the sleeve, and the steel bolt moves up and down through the rotation of the adjusting screw.

Description

Technical Field

[0001] This invention relates to cylindrical locks, specifically a cylindrical lock adjusting bolt mechanism. Background Technology

[0002] A cylindrical lock is a type of lock that unlocks or locks by rotating a pivot or lock cylinder, or a combination of both, which in turn drives an actuator to rotate. Small and inexpensive, they are used in various devices, but primarily in metal cabinet doors or locomotive doors. They generally consist of a base, a rotating shaft, and a bolt, and are installed in the cabinet door through a nut on the outer diameter of the base. Examples include Chinese patent application number 201720240707.9, authorized on October 27, 2017, entitled "Reset Lock"; and Chinese patent application number 201721286981.6, authorized on May 15, 2018, entitled "Cylindrical Lock". However, the above-mentioned and similar products generally use Z-shaped steel bolts or bushings set on the outer diameter of the rotating shaft in the base. The rotating shaft is adjusted and tightened by inserting pins extending from both sides of the rotating shaft into the rotating holes on the bushings. Their production, assembly and use are relatively inconvenient. Some of the adjustment methods also require springs to be set on the outer diameter of the rotating shaft, which limits their application range. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the purpose of this invention is to provide a cylindrical lock adjusting bolt mechanism that solves the technical problems of inconvenient production, assembly, and adjustment, high cost, and limited application range of existing similar products. This objective is achieved through the following technical solution.

[0004] A cylindrical lock adjusting bolt mechanism includes a base with a rotating shaft and an unlocking head at the end of the rotating shaft within an opening at the top of the base. The key structural design features include a rotating shaft extending from the bottom of the base and connecting to a locking screw extending from a sleeve. An opening is located at the top corner of one side of the sleeve. One end of the bolt has a threaded hole, and the other end extends out of the sleeve's opening. An external threaded section at one end of the adjusting screw connects to the bolt's threaded hole, making the adjusting screw and bolt integral. A locking screw is positioned within the center hole of the adjusting screw. The bolt and adjusting screw are secured to the sleeve via the locking screw. The adjusting screw has an external hexagonal head, and its end face is larger than the diameter of the top opening of the sleeve. The bolt extending out of the sleeve is confined within the sleeve's opening. The bolt is adjusted by rotating the adjusting screw, and the rotating shaft drives the sleeve to rotate, thus unlocking the lock. The aforementioned adjusting screw rotates freely inside the sleeve and is connected to the base's rotating shaft via a locking screw extending from the sleeve; the unlocking head at the end of the rotating shaft inside the hole at the top of the base adopts a square head or similar structure, and can be opened by inserting and matching a mechanical key, or by unlocking the passive electronic lock cylinder inside the unlocking head using an electronic key or similar means; the aforementioned base is not limited to the existing base structure design with a raised outer ring on the top outer diameter and an external thread on the base's outer diameter below the outer ring.

[0005] The locking screw at the bottom of the sleeve has a square hole, and the square head of the rotating shaft extending from the bottom of the base fits into the square hole of the sleeve. The sleeve and the rotating shaft can also be connected as one unit by means of a connecting block, etc., so that the unlocking operation can be achieved by the rotating shaft driving the sleeve to rotate.

[0006] The adjusting screw has a screw thread hole in its center hole. The adjusting screw is connected to the locking screw through the screw thread hole. The locking screw has an external thread on the outer diameter of its shank.

[0007] The adjusting screw has a keyway in its center hole, and the locking screw has a keyway at its shank. The locking screw is fitted into the adjusting screw via the keyway, and its end extends out of the sleeve via the adjusting screw. The connection method between the locking screw and the adjusting screw is not limited to the two methods described above, and the end of the locking screw is not limited to having an external thread. It is sufficient that the adjusting screw inside the sleeve can rotate, and the end of the locking screw extending out of the sleeve is connected to the base's rotating shaft for rotation. For example, the end of the locking screw can be connected to the base's rotating shaft via a keyway or a square head.

[0008] The sleeve has an opening on one side, which is a hole on one side of the sleeve. One end of the bolt threaded hole is inserted into the sleeve through the opening and connected to the adjusting screw.

[0009] The threaded end of the adjusting screw is provided with a ring-shaped anti-loosening tooth, and the bottom of the sleeve corresponding to the anti-loosening tooth is provided with a ring-shaped sleeve anti-loosening tooth. The anti-loosening tooth of the adjusting screw meshes with the sleeve anti-loosening tooth of the sleeve.

[0010] The threaded section of the adjusting screw connects to the internal threaded hole at the bottom of the sleeve, making the adjusting screw and the sleeve a single unit. Therefore, it is only necessary to ensure that the steel bolt on the adjusting screw can move up and down when the adjusting screw is rotated.

[0011] The steel bolt is a sheet metal steel bolt, and the bottom of the protruding end of the sleeve of the steel bolt is provided with a straight boss with an arc-shaped protrusion in the middle.

[0012] The top of the steel bolt, corresponding to the straight protrusion at the bottom, has a stamped straight groove that communicates with the threaded hole of the steel bolt. This strengthens the steel bolt and improves its locking mechanism when locking the door panel.

[0013] The present invention has a reasonable structural design, is convenient to produce, install and use, has few parts, low cost, simple assembly process, and wide range of applications; it is suitable for use as an adjusting bolt mechanism for cylindrical locks, as well as for structural improvements of similar products. Attached Figure Description

[0014] Figure 1 This is an exploded structural diagram of the present invention.

[0015] Figure 2 yes Figure 1 A schematic diagram of the assembled three-dimensional structure.

[0016] Figure 3 yes Figure 2 A cross-sectional structural diagram.

[0017] Figure 4 yes Figure 2 A schematic diagram of the bottom structure, where the dotted lines represent the sleeve.

[0018] Figure 5 yes Figure 1 A schematic diagram of the improved structure.

[0019] Figure 6 yes Figure 4 A schematic diagram of the usage state structure.

[0020] Attached figures and their names: 1. Sleeve, 101. Square hole, 102. Sleeve anti-loosening teeth, 2. Steel bolt, 201. Steel bolt threaded hole, 3. Adjusting screw, 301. Screw threaded hole, 302. Screw anti-loosening teeth, 4. Locking screw, 5. Base, 6. Rotating shaft. Implementation

[0021] The structure and use of the present invention will now be further described with reference to the accompanying drawings. Figures 1-4 , Figure 6 As shown, the base 5 of the adjusting bolt mechanism is equipped with a rotating shaft 6. The end of the rotating shaft is equipped with an unlocking head in the orifice at the top of the base. The unlocking head at the end of the rotating shaft in the orifice at the top of the base is a square head, which is opened after being paired by inserting a mechanical key. The outer diameter of the top of the base is equipped with a raised outer ring, and the outer diameter of the base below the outer ring is equipped with an external thread. Meanwhile, one end of the rotating shaft extends out of the bottom of the base, and this end of the rotating shaft is connected to one end of the locking screw 4 extending out of the sleeve 1. An opening is provided at the top corner of one side of the sleeve. One end of the steel bolt 2 is provided with a steel bolt threaded hole 201, and the other end of the steel bolt extends out of the opening of the sleeve. The external thread section of one end of the adjusting screw 3 is connected to the steel bolt threaded hole. The adjusting screw and the steel bolt are integrated. The locking screw is set in the center hole of the adjusting screw. The steel bolt and the adjusting screw are set in the sleeve through the locking screw. The outer diameter of the end of the adjusting screw is provided with an external hexagon. The end plane of the adjusting screw is larger than the diameter of the top hole of the sleeve. The steel bolt extending out of the sleeve is limited to the opening of the sleeve. The steel bolt is adjusted by moving up and down by rotating the adjusting screw. The rotating shaft drives the sleeve to rotate to unlock.

[0022] The specific structure is as follows: A square hole 101 is provided at the protruding end of the locking screw at the bottom of the sleeve. The square head of the rotating shaft extending from the bottom of the base fits into the square hole of the sleeve. A screw threaded hole 301 is provided in the center hole of the adjusting screw. The adjusting screw is integrated with the locking screw through the screw threaded hole, and the outer diameter of the locking screw's shank has external threads. Simultaneously, the threaded end of the adjusting screw has a circular anti-loosening tooth 302, and the bottom of the sleeve corresponding to the anti-loosening tooth has a circular sleeve anti-loosening tooth 102. The anti-loosening tooth of the adjusting screw meshes with the sleeve anti-loosening tooth of the sleeve. The bolt is a sheet metal bolt. The bottom of the bolt's protruding sleeve end has a centrally arc-shaped raised I-shaped boss. The top of the I-shaped boss at the bottom of the bolt has a stamped I-shaped groove, which communicates with the bolt's threaded hole.

[0023] In use, after screwing the nut into the external thread of the base, the cylindrical lock is installed on the mounting hole of the door panel. Rotating the locking screw allows the adjusting bolt mechanism to be installed on the rotating shaft at the bottom of the base. Loosening the locking screw and rotating the adjusting screw allows adjustment of the position of the bolt inside the sleeve. To unlock, insert the mechanical key into the square head of the rotating shaft. The mechanical key drives the rotating shaft to rotate, which in turn drives the sleeve to rotate, thus unlocking the device.

[0024] Based on the above structural characteristics, such as Figure 5As shown, a keyway can also be provided in the center hole of the adjusting screw, and a keyway can be provided at the shank of the locking screw. The locking screw is fitted into the keyway of the adjusting screw via the keyway, and its end extends out of the sleeve via the adjusting screw. Furthermore, one side opening of the sleeve is an opening on one side of the sleeve. One end of the threaded hole of the bolt is inserted into the sleeve through the opening and connected to the adjusting screw. Further, the threaded section of the adjusting screw connects to the internal threaded hole at the bottom of the sleeve, making the adjusting screw and the sleeve a single unit.

[0025] In summary, this adjusting bolt mechanism is secured to the lock by a locking screw. After loosening the locking screw, the adjusting screw can be rotated to adjust the bolt height. Since the bolt is stuck on the sleeve, it can only slide up and down when the adjusting screw is rotated, thus adjusting the bolt height. In the above structural design, the base can also be fixed to the mounting hole of the door panel by the adjusting screw. However, the diameter and height of the sleeve are not limited to the dimensions designed in the above figure, or the diameter of the sleeve can be designed to be smaller than the diameter of the base, and the height of the sleeve can be reduced. It can then be fixed to the mounting hole of the door panel by setting a nut on the external thread of the base. At the same time, the opening and aperture of the sleeve are not limited to the dimensions designed in the above figure, as long as the bolt is confined within the opening and aperture of the sleeve. When the opening and aperture of the sleeve are small, the bolt can be inserted into the opening of the sleeve from above through the grooves on both sides of the screw threaded hole, or the bolt can be inserted into the aperture of the sleeve through the flat key edges on both sides of the screw threaded hole.

Claims

1. A cylindrical lock adjusting bolt mechanism, the base (5) of the adjusting bolt mechanism is provided with a rotating shaft (6), and the end of the rotating shaft is provided with an unlocking head in the orifice at the top of the base; characterized in that One end of the rotating shaft (6) extends out of the bottom of the base (5), and the other end of the rotating shaft is connected with one end of the locking screw (4) extending out of the sleeve (1). An opening is arranged at the top corner of one side of the sleeve, one end of the steel bolt (2) is provided with a steel bolt threaded hole (201), the other end of the steel bolt extends out of the opening of the sleeve, the outer thread section of one end of the adjusting screw (3) is connected with the steel bolt threaded hole of the steel bolt, the adjusting screw and the steel bolt are integrated, the locking screw is arranged in the center hole of the adjusting screw, the steel bolt and the adjusting screw are arranged in the sleeve through the locking screw, the outer diameter of the end of the adjusting screw is provided with an outer hexagon, the end face of the adjusting screw is larger than the diameter of the top hole of the sleeve, and the steel bolt extending out of the sleeve is limited in the opening of the sleeve; the steel bolt is adjusted by rotating and moving up and down through the adjusting screw, and the sleeve is rotated by the rotating shaft to realize unlocking; a screw threaded hole (301) is arranged in the center hole of the adjusting screw (3), the adjusting screw is integrated with the locking screw (4) through the screw threaded hole, and the outer diameter of the screw rod of the locking screw is provided with an outer thread; a flat key hole is arranged in the center hole of the adjusting screw (3), the screw rod of the locking screw (4) is provided with a flat key surface, the locking screw is integrated with the flat key hole of the adjusting screw through the flat key surface, and the end part extends out of the sleeve (1) through the adjusting screw; the end part of the threaded section of the adjusting screw (3) is provided with a ring-shaped screw anti-loosening tooth (302), the bottom of the sleeve (1) in the sleeve anti-loosening tooth (102) corresponding to the screw anti-loosening tooth is provided with a ring-shaped sleeve anti-loosening tooth, and the screw anti-loosening tooth of the adjusting screw is engaged with the sleeve anti-loosening tooth of the sleeve; in use, after the nut is screwed into the outer thread of the base, the cylindrical lock is installed on the mounting hole of the door plate, the locking screw is rotated, and the adjusting steel bolt mechanism can be installed on the rotating shaft at the bottom of the base; the locking screw is loosened, the adjusting screw is rotated, and the position of the steel bolt in the sleeve can be adjusted; when unlocking, the square head of the rotating shaft is inserted into the mechanical key, the rotating shaft is rotated by the mechanical key, the sleeve is rotated by the rotating shaft, and unlocking is realized.

2. The cylindrical lock adjuster key mechanism according to claim 1, wherein The locking screw (4) extending out of the bottom of the sleeve (1) is provided with a square hole (101), and the square head of the rotating shaft (6) extending out of the bottom of the base (5) is sleeved into the square hole of the sleeve.

3. The cylindrical lock adjuster key mechanism according to claim 1, wherein The opening of one side of the sleeve (1) is an opening of one side of the sleeve, one end of the steel bolt threaded hole (201) of the steel bolt (2) is inserted into the sleeve through the opening of the sleeve and connected with the adjusting screw (3).

4. The cylindrical lock adjuster key mechanism according to claim 1, wherein The threaded section of the adjusting screw (3) is connected with the internal threaded hole in the bottom of the sleeve (1), and the adjusting screw and the sleeve are integrated.

5. The cylindrical lock adjuster key mechanism according to claim 1, wherein The steel bolt (2) is a sheet metal steel bolt, and the sleeve (1) extending out of one end of the steel bolt is provided with a middle arc-shaped convex one-word-shaped boss at the bottom.

6. The cylindrical lock adjuster key mechanism according to claim 5, wherein The bottom of the steel bolt (2) is provided with a one-word-shaped groove corresponding to the top, and the one-word-shaped groove is communicated with the steel bolt threaded hole (201).

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