A lock cylinder

Abstract

The application provides a lock cylinder, which comprises a main body, one end of the main body is provided with a key cylinder, the other end of the main body is provided with a finger spinner, an elongated movable slot is formed in the main body along the length direction of the main body, a first threaded hole is arranged on the main body, the first threaded hole is communicated with the elongated movable slot and is dislocated with the length midpoint of the elongated movable slot, the two side walls along the length direction of the elongated movable slot are provided with linear sliding rails, an elongated movable piece is movably connected in the elongated movable slot through the linear sliding rails, the length of the elongated movable piece is smaller than the length of the elongated movable slot, springs are arranged between the two ends of the elongated movable piece and the two side walls along the width direction of the elongated movable slot, a second threaded hole is arranged on the elongated movable piece, and the second threaded hole is dislocated with the first threaded hole when the spring is in a natural state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lock fittings, in particular to a lock cylinder. BACKGROUND

[0002] The lock cylinder is a common and important fitting in a lock, which is inserted into the lock shell by vertical insertion during installation. The specific structure of the traditional lock cylinder can refer to the patent document with the application number 2011102432773. One end of the lock cylinder is a key cylinder, which corresponds to the outside of the door after installation. The other end is a finger spinner, which corresponds to the inside of the door after installation. On the outside of the door, the rotation of the cam can be controlled by inserting the key, and the extension and retraction of the lock bolt in the lock shell can be actuated by the rotation of the cam, thereby achieving locking or unlocking. On the inside of the door, the rotation of the cam can also be controlled by the finger spinner without the key.

[0003] The above is the working principle of the commonly known lock cylinder. Even though various password locks and fingerprint locks have been derived in recent years, the installation method and working principle of the lock cylinder still retain the traditional method. During installation, the lock cylinder is inserted into the lock shell with a hole that matches the cross-sectional profile of the lock cylinder. On the other side of the lock shell, i.e., the side corresponding to the thickness of the door panel, an installation hole is provided. After the lock cylinder is inserted into the lock shell, the threaded hole on the lock cylinder can be aligned with the installation hole, so that the lock cylinder can be fixed by a long screw passing through the installation hole. After installation, the long screw corresponds to the thickness of the door panel.

[0004] However, the lock cylinder is a fitting involved in the locking or unlocking action, and the rotation of the cam needs to be controlled during locking or unlocking. On the other hand, due to the need for secondary replacement, a reasonable assembly gap is often left between the lock cylinder and the hole in the lock shell. Therefore, over time, the long screw inevitably moves outwards, affecting the normal use of the door. SUMMARY

[0005] The present application aims to solve the above technical problems and provides a lock cylinder.

[0006] The technical solution of the present application is a lock cylinder, which comprises a main body, one end of the main body is provided with a key cylinder, the other end of the main body is provided with a finger spinner, a long-shaped movable slot is provided on the main body along the length direction of the main body, a first threaded hole is also provided on the main body, the first threaded hole communicates with the long-shaped movable slot and is offset from the length midpoint of the long-shaped movable slot.

[0007] The linear slide rail is arranged on the two side walls of the long-shaped movable slot along the length direction of the long-shaped movable slot, the long-shaped movable member is movably connected in the long-shaped movable slot through the linear slide rail, the length of the long-shaped movable member is less than the length of the long-shaped movable slot, the spring is arranged between the two ends of the long-shaped movable member and the two side walls of the long-shaped movable slot along the width direction of the long-shaped movable slot, the second threaded hole is arranged on the long-shaped movable member, and the second threaded hole is dislocated with the first threaded hole when the spring is in a natural state.

[0008] The long-shaped movable member is provided with a pair of first telescopic holes on one side of the long-shaped movable slot towards the bottom of the long-shaped movable slot, the length direction of the first telescopic hole is parallel to the length direction of the second threaded hole, the first telescopic hole is filled with the first deformation member with the end protruding from the opening of the first telescopic hole, the first telescopic hole is provided with the first spherical groove communicating with the second threaded hole, and the first spherical groove is provided with the first spherical member.

[0009] The long-shaped movable slot is provided with a pair of second telescopic holes on both sides of the first threaded hole, the length direction of the second telescopic hole is parallel to the length direction of the first threaded hole, the first telescopic hole is aligned with the second telescopic hole when the second threaded hole is aligned with the first threaded hole, the second telescopic hole is filled with the second deformation member with the end recessed from the opening of the second telescopic hole, the second telescopic hole is provided with the second spherical groove communicating with the first threaded hole, and the second spherical groove is provided with the second spherical member.

[0010] As an implementation form, the spring between each end of the long-shaped movable member and each side wall of the long-shaped movable slot is provided in two places.

[0011] As an implementation form, each end of the long-shaped movable member is provided with two first end holes, each side wall of the long-shaped movable slot is provided with two second end holes, and the two ends of the spring are fixedly connected in the first end hole and the second end hole respectively.

[0012] As an implementation form, the linear slide rail of each side wall of the long-shaped movable slot is provided in two places.

[0013] As an implementation form, the first spherical groove is located at the middle segment position close to the second threaded hole.

[0014] As an implementation form, the second spherical groove is located at the middle segment position close to the first threaded hole.

[0015] As an implementation form, the second telescopic hole is provided with a guiding arc-shaped opening at the opening.

[0016] As an implementation form, the main body is further provided with a rotating opening, and a cam driven by the key core or the rotating device is arranged in the rotating opening.

[0017] As an implementation form, a first gap is arranged between the two ends of the cam and the two inner sides of the rotating opening.

[0018] As an implementation form, a second gap is arranged between the long movable member and the bottom of the long movable slot.

[0019] Compared with the prior art, when the lock core is installed, the lock core is inserted into the lock shell provided with the insertion hole matched with the cross-sectional profile of the lock core, the second threaded hole is aligned with the mounting hole on the lock shell through the relative movement of the lock core and the lock shell, and then the screw is assembled. When the screw is turned into the second threaded hole and passes the position of the second spherical member, the second spherical member is extruded to move into the second telescopic hole, so as to extrude the second deformable member to extend outward. Then, the lock core is moved relative to the lock shell under the condition that the screw is connected with the second threaded hole. After the second threaded hole and the first threaded hole are aligned, the part of the second deformable member extending outward can extend into the first telescopic hole. Continue to turn in the screw until the screw passes the position of the first spherical member, the first spherical member is extruded to move into the first telescopic hole, so as to extrude the first deformable member to extend outward. The first deformable member extrudes the second deformable member from the first telescopic hole, and the lock core is moved under the condition that the screw is connected with the long movable member, which breaks the balance of the springs on both sides of the long movable member, and the long movable member has a tendency to return. Then, the assembled screw is connected with the first threaded hole and the second threaded hole, and the first threaded hole and the second threaded hole have a tendency to be misaligned, so that the friction between the threaded wire of the screw and each threaded groove is greatly increased. At the same time, the first spherical member and the second spherical member can also make the screw bear the force, so that the lock core is not easy to move outward during a long period of use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The assembly diagram of the lock core and the screw provided by the embodiment of the present application is shown;

[0021] Figure 2 The side view of the lock core provided by the embodiment of the present application is shown, in which the long movable member is hidden;

[0022] Figure 3 The partial sectional view of the lock core provided by the embodiment of the present application is shown.

[0023] In the figure: 1, main body; 2, key core; 3, finger spinner; 4, long movable slot; 5, first threaded hole; 6, straight slide rail; 7, long movable member; 8, spring; 9, second threaded hole; 10, first telescopic hole; 11, first deformation member; 12, first spherical slot; 13, first spherical member; 14, screw; 15, second telescopic hole; 16, second deformation member; 17, second spherical slot; 18, second spherical member; 19, first end hole; 20, second end hole; 21, guiding arc-shaped mouth; 22, rotating mouth; 23, cam; 24, first gap; 25, second gap. DETAILED DESCRIPTION

[0024] The above and other embodiments and advantages of the present application will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which like reference numerals refer to like elements in the figures, and wherein:

[0025] In one embodiment, as shown in Figures 1-3

[0026] ​The lock cylinder provided by the embodiment comprises a main body 1, a key cylinder 2 arranged at one end of the main body 1, a finger spinner 3 arranged at the other end of the main body 1, an elongated movable slot 4 arranged on the main body 1 along the length direction of the main body 1, a first threaded hole 5 arranged on the main body 1 and communicating with the elongated movable slot 4 and being misaligned with the length midpoint of the elongated movable slot 4, straight sliding rails 6 arranged on the two side walls of the elongated movable slot 4 along the length direction of the elongated movable slot 4, an elongated movable piece 7 movably connected to the elongated movable slot 4 through the straight sliding rails 6, the length of the elongated movable piece 7 being smaller than the length of the elongated movable slot 4, springs 8 arranged between the two ends of the elongated movable piece 7 and the two side walls of the elongated movable slot 4 along the width direction of the elongated movable slot 4, a second threaded hole 9 arranged on the elongated movable piece 7 and being misaligned with the first threaded hole 5 when the springs 8 are in a natural state, a pair of first telescopic holes 10 arranged on the side of the elongated movable piece 7 facing the bottom of the elongated movable slot 4 and located on the two sides of the second threaded hole 9, the length direction of the first telescopic holes 10 being parallel to the length direction of the second threaded hole 9, first deformation pieces 11 filled in the first telescopic holes 10 and protruding from the openings of the first telescopic holes 10, a first spherical groove 12 arranged in the first telescopic holes 10 and communicating with the second threaded hole 9, and a first spherical piece 13 arranged in the first spherical groove 12, wherein when a screw 14 is assembled along the second threaded hole 9, the first spherical piece 13 is driven to expand outward by the thread extrusion of the screw 14, a pair of second telescopic holes 15 arranged on the bottom of the elongated movable slot 4 and located on the two sides of the first threaded hole 5, the length direction of the second telescopic holes 15 being parallel to the length direction of the first threaded hole 5, the first telescopic holes 10 being aligned with the second telescopic holes 15 when the second threaded hole 9 is aligned with the first threaded hole 5, second deformation pieces 16 filled in the second telescopic holes 15 and recessed from the openings of the second telescopic holes 15, a second spherical groove 17 arranged in the second telescopic holes 15 and communicating with the first threaded hole 5, and a second spherical piece 18 arranged in the second spherical groove 17, wherein when the screw 14 is assembled along the first threaded hole 5, the second spherical piece 18 is driven to expand outward by the thread extrusion of the screw 14.

[0027] In the embodiment, the working principle of the lock cylinder, such as the use of the key cylinder 2 and the finger spinner 3, is not different from that of the traditional lock cylinder. Only when the lock cylinder is installed, the installation principle and the stability after installation are superior to those of the traditional lock cylinder. In the long-term use process, the screw 14 is not prone to move outward.

[0028] In this embodiment, when installing the lock cylinder, the lock cylinder is inserted into the lock housing which has a hole matching the cross-sectional profile of the lock cylinder. The second threaded hole 9 is aligned with the mounting hole on the lock housing by relative movement of the lock cylinder and the lock housing, and then the screw 14 is assembled. It is worth noting that when the screw 14 is turned into the second threaded hole 9 and passes the position of the second spherical part 18, the second spherical part 18 is pressed by the screw 14 and moves into the second telescopic hole 15, thereby extruding the second deformation part 16 to expand outward. When the screw 14 passes the position of the second spherical part 18, there is a force acting on it, so the installer can feel it obviously. Then, with the screw 14 connected to the second threaded hole 9, the lock cylinder is moved relative to the lock housing to Figure 3 , for example, the lock cylinder is moved to the left. After the second threaded hole 9 is aligned with the first threaded hole 5, the part of the second deformation part 16 that expands outward can extend into the first telescopic hole 10. The part of the second deformation part 16 that expands outward originally fills the space between the elongated movable part 7 and the elongated movable slot 4, making it difficult to move the lock cylinder relative to the lock housing. After the second threaded hole 9 is aligned with the first threaded hole 5, the installer can feel the unloading obviously. At this time, continue to turn the screw 14 until the screw 14 passes the position of the first spherical part 13, and the first spherical part 13 is pressed by the screw 14 and moves into the first telescopic hole 10, thereby extruding the first deformation part 11 to expand outward. The expansion of the first deformation part 11 extrudes the second deformation part 16 from the first telescopic hole 10. It should be noted that the movement of the lock cylinder with the screw 14 connected to the elongated movable part 7 breaks the balance of the springs 8 on both sides of the elongated movable part 7, and then Figure 3 , for example, the left spring 8 becomes a tensile spring and the right spring 8 becomes a compression spring. Therefore, the elongated movable part 7 has a tendency to return to the left as a whole. Then, the assembled screw 14 is connected to the first threaded hole 5 and the second threaded hole 9, and the first threaded hole 5 and the second threaded hole 9 have a tendency to be misaligned, so the friction between the threaded wire of the screw 14 and the threaded slots is greatly increased. At the same time, the first spherical part 13 and the second spherical part 18 can also make the screw 14 bear the force, so the lock cylinder is not easy to move outward during a long period of use.

[0029] In one embodiment, as shown in Figure 1 .

[0030] The lock cylinder provided in this embodiment has two springs 8 between each end of the elongated movable part 7 and each side wall of the elongated movable slot 4.

[0031] In this embodiment, the two springs 8 are arranged, i.e., two on each side. On the one hand, this can increase the restoring force of the elongated movable part 7. On the other hand, when the two springs 8 are arranged close to the two side walls of the elongated movable slot 4 along the length direction, it can enhance the smoothness of the sliding of the elongated movable part 7 along the straight sliding rail 6.

[0032] In one embodiment, as shown in Figure 3 .

[0033] The lock cylinder provided by the embodiment has two first end holes 19 at each end of the elongated movable member 7, two second end holes 20 at each side wall of the elongated movable slot 4, and the two ends of the spring 8 are fixedly connected in the first end holes 19 and the second end holes 20 respectively.

[0034] In the embodiment, the first end holes 19 are formed at the two ends of the elongated movable member 7, the second end holes 20 are formed at the two side walls of the elongated movable slot 4, and the spring 8 is provided. The two ends of the spring 8 are fixedly connected in the first end holes 19 and the second end holes 20 respectively. When the elongated movable member 7 moves relative to the elongated movable slot 4, one spring 8 becomes a tension spring and the other spring 8 becomes a compression spring.

[0035] In one embodiment, as shown in Figure 1 .

[0036] The lock cylinder provided by the embodiment has two straight sliding rails 6 at each side wall of the elongated movable slot 4.

[0037] In the embodiment, the two straight sliding rails 6 are provided, i.e. two at each side, and the two springs 8 can together enhance the smoothness of the sliding of the elongated movable member 7 along the straight sliding rails 6.

[0038] In one embodiment, as shown in Figure 1 .

[0039] The lock cylinder provided by the embodiment has a first spherical groove 12 located at a middle section close to the second threaded hole 9, and a second spherical groove 17 located at a middle section close to the first threaded hole 5.

[0040] In the embodiment, the first spherical groove 12 is arranged at a middle section close to the second threaded hole 9, and the second spherical groove 17 is also arranged at a middle section close to the first threaded hole 5, so that the two are corresponding.

[0041] In one embodiment, as shown in Figure 3 .

[0042] The lock cylinder provided by the embodiment has a guide arc-shaped opening 21 at the opening of the second telescopic hole 15.

[0043] In the embodiment, the guide arc-shaped opening 21 is arranged at the opening of the second telescopic hole 15, which helps the part of the second deformation member 16 extending outward to extend into the first telescopic hole 10 due to the guiding effect.

[0044] In one embodiment, as shown in Figure 2As shown.

[0045] The lock cylinder provided by the embodiment further has a rotating port 22 on the main body 1, and the rotating port 22 is provided with a cam 23 driven by the key cylinder 2 or the finger spinner 3.

[0046] In the embodiment, the cam 23 is arranged in the rotating port 22 and can be driven by the finger spinner 3 or the key cylinder 2. On the outside of the door, the key cylinder 2 can be controlled to rotate by inserting the key into the key cylinder 2, and the rotation of the cam 23 drives the extension and retraction of the bolt in the lock shell to realize locking or unlocking. On the inside of the door, the cam 23 can also be controlled to rotate by the finger spinner 3 without the key. This point retains the same working principle as the traditional lock cylinder.

[0047] In one embodiment, as Figures 2-3 As shown.

[0048] The lock cylinder provided by the embodiment is provided with a first gap 24 between the two ends of the cam 23 and the two inner sides of the rotating port 22. The lock cylinder is also provided with a second gap 25 between the elongated movable member 7 and the bottom of the elongated movable slot 4.

[0049] In the embodiment, the first gap 24 is arranged between the two ends of the cam 23 and the two inner sides of the rotating port 22, which is beneficial to the rotation of the cam 23. The second gap 25 is arranged between the elongated movable member 7 and the bottom of the elongated movable slot 4, which provides space for the outward extension of the second deformation member 16.

[0050] The above specific embodiments further detail the purposes, technical solutions, and advantages of the present application. It should be understood that the above description is only a specific embodiment of the present application and does not limit the protection scope of the present application. It is particularly pointed out that any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A lock cylinder, characterized in that, Includes a main body (1), one end of which is provided with a key core (2), and the other end of which is provided with a finger twister (3). The main body (1) has an elongated movable groove (4) along its length direction. The main body (1) also has a first threaded hole (5), which connects to the elongated movable groove (4) and is offset from the midpoint of the length of the elongated movable groove (4). The elongated movable groove (4) has linear slide rails (6) on both sides along its length direction. An elongated movable component (7) is movably connected to the elongated movable groove (4) through the linear slide rails (6). The length of the elongated movable component (7) is less than the length of the elongated movable groove (4). Springs (8) are provided between both ends of the elongated movable component (7) and the two sides along the width direction of the elongated movable groove (4). The elongated movable component (7) has a second threaded hole (9). The second threaded hole (9) is misaligned with the first threaded hole (5) when the spring (8) is in its natural state. The elongated movable part (7) has a pair of first telescopic holes (10) on one side facing the bottom of the elongated movable groove (4) and located on both sides of the second threaded hole (9). The length direction of the first telescopic hole (10) is parallel to the length direction of the second threaded hole (9). The first telescopic hole (10) is filled with a first deformable part (11) whose end protrudes from the opening of the first telescopic hole (10). The first telescopic hole (10) has a first spherical groove (12) that communicates with the second threaded hole (9). The first spherical groove (12) has a first spherical part (13). When the screw (14) is assembled along the second threaded hole (9), the first spherical part (13) is driven by the screw (14) thread to extend the first deformable part (11) outward. The bottom of the elongated movable groove (4) is provided with a pair of second telescopic holes (15) located on both sides of the first threaded hole (5). The length direction of the second telescopic hole (15) is parallel to the length direction of the first threaded hole (5). When the second threaded hole (9) and the first threaded hole (5) are aligned, the first telescopic hole (10) and the second telescopic hole (15) are aligned. The second telescopic hole (15) is filled with a second deformable part (16) whose end is recessed at the opening of the second telescopic hole (15). The second telescopic hole (15) is provided with a second spherical groove (17) that connects to the first threaded hole (5). The second spherical groove (17) is provided with a second spherical part (18). When the screw (14) is assembled along the first threaded hole (5), the second spherical part (18) is driven by the thread of the screw (14) to extend the second deformable part (16) outward.

2. The lock cylinder according to claim 1, characterized in that, The spring (8) is located at two points between each end of the elongated movable member (7) and each side wall of the elongated movable groove (4).

3. The lock cylinder according to claim 2, characterized in that, The elongated movable part (7) has two first end holes (19) at each end, and the elongated movable groove (4) has two second end holes (20) on each side wall. The two ends of the spring (8) are fixedly connected to the first end hole (19) and the second end hole (20) respectively.

4. The lock cylinder according to claim 1, characterized in that, The linear slide rails (6) on each side wall of the elongated movable groove (4) are provided in two locations.

5. The lock cylinder according to claim 1, characterized in that, The first spherical groove (12) is located in the middle section near the second threaded hole (9).

6. The lock cylinder according to claim 1, characterized in that, The second spherical groove (17) is located in the middle section near the first threaded hole (5).

7. The lock cylinder according to claim 1, characterized in that, The second telescopic hole (15) has a guide arc-shaped opening (21) at its opening.

8. The lock cylinder according to claim 1, characterized in that, The main body (1) is also provided with a turnout (22), and the turnout (22) is provided with a cam (23) driven by the key core (2) or the finger twister (3).

9. The lock cylinder according to claim 8, characterized in that, A first gap (24) is provided between the two ends of the cam (23) and the two inner sides of the rotary port (22).

10. The lock cylinder according to claim 1, characterized in that, A second gap (25) is provided between the elongated movable part (7) and the bottom of the elongated movable groove (4).

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