Lock cylinder with adjustable length

By designing an adjustable lock cylinder and utilizing the combination of pull ring, pull rod, spring, and positioning block, the problem of the lock cylinder length being unable to be adjusted was solved, thus improving installation efficiency.

CN223922810UActive Publication Date: 2026-02-17SUZHOU YISONGKUN HARDWARE PROD CO LTD
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Patent Information

Application Number
CN202520027750.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2026-02-17
Estimated Expiration
2035-01-07

AI Technical Summary

Technical Problem

The existing lock cylinder has a fixed length and cannot be adjusted according to the thickness of the door panel, resulting in inconvenient installation and low efficiency.

Method used

An adjustable length lock cylinder was designed. The lock housing spacing can be adjusted by using a pull ring, pull rod, spring and positioning block. The lock cylinder can be rotated by using a round rod, slide bar and slide groove, which facilitates length adjustment.

Benefits of technology

It allows for flexible adjustment of the lock cylinder length based on the door panel thickness, improving installation efficiency and facilitating operation by staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a length-adjustable lock cylinder, which relates to the technical field of lock cylinders, and comprises a first lock shell and a second lock shell, a first lock cylinder is arranged in the first lock shell, one side of the first lock cylinder is connected with a dial wheel, one side of the first lock shell is provided with a connecting block, a second lock cylinder is arranged in the second lock shell, and the dial wheel is connected with the connecting block. A connecting groove is formed in one side of the second lock shell and matched with the connecting block, a cavity is formed in the second lock shell, and a positioning assembly is installed in the cavity. According to the device, the distance between the first lock shell and the second lock shell can be rapidly adjusted, and then the length of the device can be adjusted according to the thickness of a door plate; and convenience is brought to the installation work of workers, and the working efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lock cylinder, more specifically, it relates to a length-adjustable lock cylinder. BACKGROUND

[0002] The lock cylinder is the core component of the lock, responsible for controlling the opening of the lock, which adopts multiple anti-theft technologies, including various special-shaped anti-pulling beads and precise number beads structure, and has very high anti-technical opening safety performance. The lock cylinder can be programmed with billions of key numbers through multiple combinations of special-shaped beads, realizing regional zero mutual opening. In addition, the lock cylinder also increases the lateral inward pressure type side column pin device, enhancing the ability to prevent violent twisting.

[0003] Based on the above, the present inventor found that the length of most lock cylinders is fixed, which cannot be adjusted according to the thickness of the door plate during use, causing inconvenience to the installation work of the staff and reducing the work efficiency.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a length-adjustable lock cylinder is provided to achieve a more practical value. INVENTION CONTENTS

[0005] The purpose and effect of the length-adjustable lock cylinder are achieved by the following specific technical means:

[0006] A length-adjustable lock cylinder, comprising a lock shell one and a lock shell two, the inside of the lock shell one is provided with a lock cylinder one, one side of the lock cylinder one is connected with a dial, one side of the lock shell one is provided with a connecting block, the inside of the lock shell two is provided with a lock cylinder two, one side of the lock shell two is provided with a connecting groove, the connecting groove is matched with the connecting block, the inside of the lock shell two is provided with a cavity, the inside of the cavity is provided with a positioning assembly, the positioning assembly comprises a limiting plate arranged in the cavity, one side of the limiting plate is provided with a pull rod, the surface of the pull rod is provided with a spring, one end of the pull rod penetrates through the lock shell two to the outside and is connected with a pull ring, the other side of the limiting plate is provided with a positioning block.

[0007] Further, the surface of the connecting block is provided with a plurality of positioning holes matched with the positioning block.

[0008] Further, the top of the lock shell two is provided with a groove, and the pull ring is arranged in the inside of the groove.

[0009] Further, one side of the dial is provided with a round rod, and the two sides of the round rod are provided with sliding strips.

[0010] Further, one side of the lock core two is provided with a circular groove, the circular groove is matched with the round rod, both sides of the circular groove are provided with a sliding groove, the sliding groove is matched with the sliding strip.

[0011] Further, one side of the lock core one is provided with a keyhole.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] 1. When the length of the device needs to be adjusted, the pull ring is pulled outwards, the pull ring drives the pull rod to move, the pull rod drives the limiting plate to move and press the spring, when the positioning block is separated from the positioning hole, the connecting block can be moved, thereby the distance between the lock shell one and the lock shell two can be adjusted, the pull ring is loosened after adjustment, the spring rebounds and pushes the positioning block into the inside of the positioning hole, at this time, the lock shell two can be fixed, thereby the length of the device can be adjusted according to the thickness of the door plate, the installation work of the staff is facilitated, and the work efficiency is improved.

[0014] 2. When the distance between the lock shell one and the lock shell two changes, the round rod and the sliding strip move out a distance from the circular groove and the sliding groove, when the lock core one is rotated, the handle is rotated, when the handle rotates, the round rod and the sliding strip drive the lock core two to rotate together, and the device is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic view of the length-adjustable lock core.

[0016] Figure 2 It is a three-dimensional schematic view of the lock shell one of the length-adjustable lock core.

[0017] Figure 3 It is a three-dimensional schematic view of the lock shell two of the length-adjustable lock core.

[0018] Figure 4 It is a planar schematic view of the length-adjustable lock core positioning assembly.

[0019] In the drawings, the correspondence between the component names and the drawing numbers is as follows:

[0020] 1, the lock shell one;2, the lock shell two;3, the lock core one;4, the keyhole;5, the handle;6, the connecting block;7, the positioning hole;8, the round rod;9, the sliding strip;10, the connecting groove;11, the recess;12, the lock core two;13, the circular groove;14, the sliding groove;15, the cavity;16, the limiting plate;17, the pull rod;18, the spring;19, the positioning block;20, the pull ring. PREFERRED EMBODIMENT

[0021] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0022] In the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of" is two or more than two; the directions or position relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated or implied to have a specific direction, to be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiments

[0024] As shown in the accompanying Figure 1 to the accompanying Figure 4 :

[0025] The utility model provides a length -adjustable lock cylinder, including lock shell one 1 and lock shell two 2, the inside installation of lock shell one 1 has lock cylinder one 3, one side of lock cylinder one 3 is connected with the handle 5, one side of lock shell one 1 is installed with the connecting block 6, the inside installation of lock shell two 2 has lock cylinder two 12, one side of lock shell two 2 is seted up with the connecting groove 10, the connecting groove 10 is matched with the connecting block 6, the inside of lock shell two 2 is seted up with chamber 15, the inside installation of chamber 15 has the positioning assembly, the positioning assembly includes the limiting board 16 in the inside of chamber 15, one side of limiting board 16 is installed with pull rod 17, the surface of pull rod 17 is equipped with spring 18, one end of pull rod 17 is connected with the pull ring 20 outside through lock shell two 2, the other side of limiting board 16 is installed with the locating block 19, through the cooperation of pull ring 20, pull rod 17, spring 18 and locating block 19, when needing to adjust the length of device, pull out pull ring 20 outward, pull ring 20 drives pull rod 17 to move, pull rod 17 drives limiting board 16 to move and extrude spring 18, when locating block 19 is separated from the positioning hole 7, can move connecting block 6, and then the distance between lock shell one 1 and lock shell two 2 can be adjusted, after adjusting, loosen pull ring 20, spring 18 rebounds and pushes locating block 19 into the inside of positioning hole 7, at this moment can fix lock shell two 2, and then the length of device can be adjusted according to the thickness of door plate, bring convenience for the installation work of staff, improve work efficiency.

[0026] Wherein, the surface of connecting block 6 is seted up with a plurality of positioning holes 7, the positioning hole 7 is matched with locating block 19.

[0027] Wherein, the top of lock shell two 2 is seted up with recess 11, the pull ring 20 is located in the inside of recess 11.

[0028] Wherein, one side of handle 5 is installed with round rod 8, both sides of round rod 8 are installed with slide strip 9.

[0029] Wherein, one side of lock cylinder two 12 is seted up with round groove 13, the round groove 13 is matched with round rod 8, both sides of round groove 13 are seted up with sliding slot 14, the sliding slot 14 is matched with slide strip 9, through the cooperation of round groove 13, round rod 8, slide strip 9 and sliding slot 14, after the interval of lock shell one 1 and lock shell two 2 changes, round rod 8 and slide strip 9 move out a distance from round groove 13 and sliding slot 14, when rotating lock cylinder one 3, handle 5 rotates, when handle 5 rotates, round rod 8 and slide strip 9 drive lock cylinder two 12 to rotate together, convenient to use.

[0030] Wherein, one side of lock cylinder one 3 is seted up with key hole 4.

[0031] The specific use mode and function of the embodiment:

[0032] First check the integrity of the device, confirm no error can be used, when the need to adjust the length of the device, pull the ring 20, pull ring 20 with pull rod 17 moves, pull rod 17 with limit plate 16 moves and extrusion spring 18, when the positioning block 19 and positioning hole 7 is separated, can move the connecting block 6, in turn can adjust the distance between the lock shell one 1 and the lock shell two 2, adjust the release ring 20, spring 18 and the positioning block 19 is pushed into the inside of the positioning hole 7, at this time can be fixed lock shell two 2, while the round bar 8 and slide 9 from the round groove 13 and the slide groove 14 moves out a distance, turn the lock cylinder one 3, when the dial 5 rotates, dial 5 rotates, round bar 8 and slide 9 with lock core two 12 together, it is convenient to use, through the above steps can be according to the thickness of the door plate adjust the length of the device, the installation work of staff has brought the convenience, improves the work efficiency.

[0033] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. An adjustable length lock cylinder comprising a first lock housing (1) and a second lock housing (2), characterized in that: The inside of the lock shell one (1) is mounted with the lock cylinder one (3), one side of the lock cylinder one (3) is connected with the handle (5), one side of the lock shell one (1) is mounted with the connecting block (6), the inside of the lock shell two (2) is mounted with the lock cylinder two (12), one side of the lock shell two (2) is equipped with the connecting groove (10), the connecting groove (10) is matched with the connecting block (6), the inside of the lock shell two (2) is equipped with the cavity (15), the inside of the cavity (15) is mounted with the positioning assembly, the positioning assembly includes the limiting plate (16) which is equipped inside the cavity (15), one side of the limiting plate (16) is mounted with the pull rod (17), the surface of the pull rod (17) is equipped with the spring (18), one end of the pull rod (17) is connected with the pull ring (20) outside through the lock shell two (2), the other side of the limiting plate (16) is mounted with the positioning block (19).

2. A lock cylinder of adjustable length as defined in claim 1, characterized in that: The surface of the connecting block (6) is equipped with the positioning hole (7), the positioning hole (7) is matched with the positioning block (19).

3. The adjustable length lock cylinder of claim 1 wherein: The top of the lock shell two (2) is equipped with the recess (11), the pull ring (20) is equipped inside the recess (11).

4. The adjustable length lock cylinder of claim 1 wherein: One side of the handle (5) is mounted with the round rod (8), both sides of the round rod (8) are mounted with the slide bar (9).

5. A lock cylinder of adjustable length as claimed in claim 4 wherein: One side of the lock cylinder two (12) is equipped with the round groove (13), the round groove (13) is matched with the round rod (8), both sides of the round groove (13) are equipped with the sliding groove (14), the sliding groove (14) is matched with the slide bar (9).

6. The adjustable length lock cylinder of claim 1 wherein: One side of the lock cylinder one (3) is equipped with the key hole (4).