American-standard lock cylinder with length adjusting function

Abstract

The utility model particularly relates to an American-standard lock cylinder with a length-adjustable function, which comprises a first shaft sleeve, the first shaft sleeve is provided with a first mounting opening for a password key to insert, the first shaft sleeve is further provided with at least one auxiliary shaft sleeve, an auxiliary shaft sleeve mounting opening and a screw hole, and the shaft sleeve is further provided with a fourth threaded shaft sleeve for threaded connection mounting. The fourth threaded shaft sleeve is provided with a third mounting opening and a third screw hole, a third extension shaft is arranged in the third mounting opening, the front end and the rear end of the third extension shaft are provided with a third transmission convex block and a third twisting groove respectively, the third screw hole is in threaded connection with a first screw rod, one end of the first screw rod penetrates through the auxiliary shaft sleeve, and one end of the first screw rod is in threaded connection with the first shaft sleeve; a shifting piece is arranged at the front end of the fourth threaded shaft sleeve, and the third transmission protruding block is connected with the shifting piece. According to the structure, the first shaft sleeve is further provided with at least one auxiliary shaft sleeve, the overall length is increased, and the structure is adaptive to door bodies with different thicknesses.

Description

Technical Field

[0001] This utility model specifically relates to an American Standard lock cylinder with an adjustable length function. Background Technology

[0002] There are many types and models of anti-theft locks on the market, but the sizes of these locks vary. Therefore, when installing anti-theft locks on door frames, it is necessary to select a lock cylinder of appropriate length according to the thickness of the door. However, the length of the lock cylinder is fixed at the factory, while the thickness of the door can vary due to manufacturing precision issues, which can easily lead to a mismatch between the anti-theft lock and the door frame. Sometimes the lock cylinder sleeve is too long, extending beyond the door body and causing an unsightly appearance; other times the lock cylinder sleeve is too short, and its ends cannot be aligned with the sides of the door body, causing the lock cylinder sleeve to wobble relative to the door body. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide an American standard lock cylinder with an adjustable length function, which can adapt to door bodies of different thicknesses and facilitate quick installation.

[0004] According to the present invention, an American standard lock cylinder with adjustable length function includes a first bushing, the first bushing having a first mounting port for inserting a combination key, the first bushing also having at least one auxiliary bushing for increasing the overall length, the auxiliary bushing having a mounting port and a screw hole, the bushing also having a fourth threaded bushing for screw-on installation, the fourth threaded bushing having a third mounting port and a third screw hole, the third mounting port having a third extension shaft, the front and rear ends of the third extension shaft having a third transmission protrusion and a third torsion groove respectively, the third screw hole having a first screw rod screwed to it, one end of the first screw rod passing through the auxiliary bushing and the other end of the first screw rod being screwed onto the first bushing, the front end of the fourth threaded bushing having a toggle member, the third transmission protrusion being connected to the toggle member.

[0005] Specifically, the auxiliary bushing is divided into a second bushing and / or a third bushing.

[0006] Specifically, the second bushing is provided with a second mounting port and a first screw hole, through which the first screw passes.

[0007] Specifically, the second mounting port is provided with a first recess, and the front end of the second bushing is provided with a first protrusion.

[0008] Specifically, the rear end surface of the third bushing is provided with a fourth mounting port and a second screw hole, the front end surface of the third bushing is provided with a second protrusion, the first screw passes through the second screw hole, and the side of the fourth mounting port is provided with a second recess.

[0009] Furthermore, the fourth mounting port is also provided with a second extension shaft, the front end of the second extension shaft is provided with a second transmission protrusion, and the rear end of the second extension shaft is provided with a second torsion groove.

[0010] Specifically, the inner wall of the third mounting port is provided with a third recess.

[0011] Furthermore, the third mounting port is also provided with a first extension shaft, the rear end of the first extension shaft is provided with a first torsion groove, and the front end of the first extension shaft is provided with a first transmission protrusion.

[0012] Furthermore, the outer surface of the fourth threaded bushing is provided with a guide groove.

[0013] Specifically, the third transmission protrusion is connected to the actuating member via a second screw.

[0014] The beneficial effects of this utility model are: the structure is provided with at least one second bushing in addition to the first bushing, thereby increasing the overall length and adapting to door bodies of different thicknesses; in addition, the structure is provided with a first screw to enable quick installation of the fourth threaded bushing, the second bushing and the first bushing together. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings.

[0016] Figure 1 This is a schematic diagram of the structure of the first embodiment of this utility model.

[0017] Figure 2 yes Figure 1 A cross-sectional structural diagram.

[0018] Figure 3 yes Figure 1 A schematic diagram of its decomposed structure.

[0019] Figure 4 This is a schematic diagram of the second embodiment of the present invention.

[0020] Figure 5 yes Figure 4 A cross-sectional structural diagram.

[0021] Figure 6 yes Figure 4 Another structural diagram from another angle.

[0022] As shown in the attached diagram:

[0023] First bushing 1, first mounting port 101, second bushing 2, second mounting port 201, first screw hole 202, first recess 203, first protrusion 204, third bushing 3, fourth mounting port 301, second screw hole 302, second recess 303, second protrusion 304, fourth threaded bushing 4, guide groove 401, third mounting port 402, third screw hole 403, third recess 404, first extension shaft 5, first torsion groove 501, first transmission protrusion 502, second extension shaft 6, second transmission protrusion 601, second torsion groove 602, third extension shaft 7, third torsion groove 701, third transmission protrusion 702, combination key 8, first screw 9, toggle 10, second screw 11. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] The following is for reference. Figures 1 to 6 According to an embodiment of the present invention, an American standard lock cylinder with an adjustable length function includes a first bushing 1. The first bushing 1 has a first mounting port 101 for inserting a combination key 8. The first bushing 1 also has at least one auxiliary bushing for increasing the overall length. The auxiliary bushing has a mounting port and a screw hole. The bushing also has a fourth threaded bushing 4 for screwing. The fourth threaded bushing 4 has a third mounting port 402 and a third screw hole 403. A third extension shaft 7 is provided in the third mounting port 402. The front and rear ends of the third extension shaft 7 are respectively provided with a third transmission protrusion 702 and a third torsion groove 701. A first screw 9 is screwed into the third screw hole 403. One end of the first screw 9 passes through the auxiliary bushing and is screwed onto the first bushing 1. The front end of the fourth threaded bushing 4 is provided with a toggle member 10. The third transmission protrusion 702 is connected to the toggle member 10.

[0026] This structure also includes at least one auxiliary bushing via the first bushing 1. The auxiliary bushing increases the overall length to accommodate door bodies of different thicknesses. Furthermore, the first mounting port 101 of the first bushing 1 allows the key 8 to be inserted. The key 8 can rotate the third extension shaft 7, which in turn twists the actuating element 10 to push the latch. In addition, this structure enables the fourth threaded bushing 4, the auxiliary bushing, and the first bushing 1 to be quickly installed together via the first screw 9. The fourth threaded bushing 4, the auxiliary bushing, and the first bushing 1 are arranged in the same axial direction.

[0027] The fourth threaded bushing 4 can be screwed into the pre-drilled holes in the door body to fix the entire lock cylinder. The first bushing 1 is installed on the outer surface of the door body. The first mounting port 101 of the first bushing 1 is provided for the installation of the combination key 8. The first mounting port 101 and the third mounting port 402 are arranged in the same axis. The size of the first mounting port 101 is adapted to the size of the front end of the combination key 8, providing sufficient space to rotate the combination key 8.

[0028] The auxiliary bushing described in this structure is divided into a second bushing 2 and / or a third bushing 3. Depending on the implementation combination, they are as follows:

[0029] First embodiment: A first bushing 1 and a fourth threaded bushing 4 are combined, and a combination key 8 is installed on the first bushing 1.

[0030] Second embodiment: A second bushing 2 is added between the first bushing 1 and the fourth threaded bushing 4 to increase the overall length. A combination key 8 is installed on the first bushing 1.

[0031] Third embodiment: A third bushing 3 is added between the first bushing 1 and the fourth threaded bushing 4 to increase the overall length. A combination key 8 is installed on the first bushing 1.

[0032] Fourth embodiment: A second bushing 2 and a third bushing 3 are added between the first bushing 1 and the fourth threaded bushing 4. The second bushing 2 and the third bushing 3 are connected. A combination key 8 is installed on the first bushing 1.

[0033] In the first embodiment: a first bushing 1 and a fourth threaded bushing 4, a first screw 9 passes through the fourth threaded bushing 4 and the extension of the first screw 9 is screwed onto the first bushing 1.

[0034] In the second embodiment, the first bushing 1, the fourth threaded bushing 4, and the second bushing 2 are connected by the first screw 9.

[0035] In the third embodiment, the first bushing 1, the fourth threaded bushing 4, and the third bushing 3 are connected by a first screw 9.

[0036] In the fourth embodiment, the first bushing 1, the fourth threaded bushing 4, the second bushing 2, and the third bushing 3 are connected by a first screw 9.

[0037] In the second and fourth embodiments: the second bushing 2 is provided with a second mounting port 201 and a first screw hole 202, and the first screw 9 passes through the first screw hole 202 to fix the position of the second bushing 2.

[0038] In this structure, the second mounting port 201 is provided with a first recess 203, and the front end of the second bushing 2 is provided with a first protrusion 204. The first protrusion 204 is placed in the second recess 303 to fix the position of the third bushing 3 and the second bushing 2.

[0039] In this structure, the rear end surface of the third bushing 3 is provided with a fourth mounting port 301 and a second screw hole 302, and the front end surface of the third bushing 3 is provided with a second protrusion 304. The first screw 9 passes through the second screw hole 302, and the side of the fourth mounting port 301 is provided with a second recess 303. The first protrusion 204 is placed in the second recess 303 to fix the third bushing 3 and the second bushing 2 together.

[0040] Alternatively, in the fourth embodiment: the inner wall of the third mounting port 402 of this structure is provided with a third recess 404. The second protrusion 304 is placed at the third recess 404, so that the third bushing 3 and the fourth threaded bushing 4 are mutually restricted, so that the third bushing 3 cannot rotate when in use.

[0041] Alternatively, in the second embodiment: the first protrusion 204 of the second bushing 2 is placed at the third recess 404 of the fourth threaded bushing 4 to fix the second bushing 2 and the fourth threaded bushing 4 together.

[0042] In the above implementation, the fourth mounting port 301 of this structure is further provided with a second extension shaft 6, the front end of the second extension shaft 6 is provided with a second transmission protrusion 601, and the rear end of the second extension shaft 6 is provided with a second torsion groove 602.

[0043] The third mounting port 402 of this structure is also provided with a first extension shaft 5. The rear end of the first extension shaft 5 is provided with a first torsion groove 501, and the front end of the first extension shaft 5 is provided with a first transmission protrusion 502.

[0044] The second transmission protrusion 601 is inserted into the first torsion groove 501. When the second transmission protrusion 601 is driven, it also drives the first torsion groove 501 to rotate. The second extension shaft 6 and the first extension shaft 5 are used to extend the length. If the front end of the combination key 8 is not long enough, the second extension shaft 6 and the first extension shaft 5 can be added to make up for the length, and finally the third extension shaft 7 can be rotated.

[0045] The first extension shaft 5 is used to implement the transmission function; the first transmission protrusion 502 is placed in the third torsion groove 701, so that when the first transmission protrusion 502 rotates, it drives the third extension shaft 7 to rotate as well.

[0046] For this embodiment, the combination relationship between the third extension shaft 7, the second extension shaft 6, and the first extension shaft 5 is adjusted as follows:

[0047] First embodiment: The third extension shaft 7 is connected to the combination key 8, so that the combination key 8 drives the third extension shaft 7 to rotate.

[0048] Second embodiment: A third bushing 3 is added, and a third extension shaft 7 is connected to the combination key 8, so that the combination key 8 drives the third extension shaft 7 to rotate. Alternatively, the third extension shaft 7, the first extension shaft 5, and the combination key 8 are connected, so that the combination key 8 drives the third extension shaft 7 and the first extension shaft 5 to rotate.

[0049] Third embodiment: A second bushing 2 is added, and a third extension shaft 7 is connected to the combination key 8, so that the combination key 8 drives the third extension shaft 7 to rotate. Alternatively, the third extension shaft 7, the first extension shaft 5, and the combination key 8 are connected, so that the combination key 8 drives the third extension shaft 7 and the first extension shaft 5 to rotate. Alternatively, the third extension shaft 7, the first extension shaft 5, the second extension shaft 6, and the combination key 8 are connected, so that the combination key 8 drives the third extension shaft 7, the second extension shaft 6, and the first extension shaft 5 to rotate.

[0050] Fourth embodiment: A second bushing 2 and a third bushing 3 are added, and a third extension shaft 7 is connected to a combination key 8, so that the combination key 8 drives the third extension shaft 7 to rotate. Alternatively, the third extension shaft 7, the first extension shaft 5, and the combination key 8 are connected, so that the combination key 8 drives the third extension shaft 7 and the first extension shaft 5 to rotate. Alternatively, the third extension shaft 7, the first extension shaft 5, the second extension shaft 6, and the combination key 8 are connected, so that the combination key 8 drives the third extension shaft 7, the second extension shaft 6, and the first extension shaft 5 to rotate.

[0051] Other structural improvements are as follows:

[0052] The outer surface of the fourth threaded bushing 4 in this structure is provided with a guide groove 401. The guide groove 401 can be adapted to the door body protrusion in the mounting opening inside the door body, and the door body protrusion is placed in the guide groove 401. This solution does not have an internal screw structure inside the door body, and uses another method to fix the position of the fourth threaded bushing 4.

[0053] The third transmission protrusion 702 in this structure is connected to the actuating member 10 via the second screw 11, which loosens the second screw 11 and separates the third transmission protrusion 702 from the actuating member 10.

[0054] The first bushing 1, the second bushing 2, the third bushing 3, and the fourth threaded bushing 4 are cylindrical in shape for easy installation. This American standard lock cylinder structure conforms to the technical standards stipulated in American lock cylinder regulations.

[0055] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A standard American standard lock cylinder with adjustable length, comprising a first bushing (1), the first bushing (1) having a first mounting port (101) for inserting a combination key (8), characterized in that: The first bushing (1) is also provided with at least one auxiliary bushing to increase the overall length. The auxiliary bushing has an installation port and a screw hole. The bushing is also provided with a fourth threaded bushing (4) for screw installation. The fourth threaded bushing (4) has a third installation port (402) and a third screw hole (403). The third installation port (402) has a third extension shaft (7). The front and rear ends of the third extension shaft (7) are respectively provided with a third transmission protrusion (702) and a third torsion groove (701). The third screw hole (403) is screwed with a first screw (9). One end of the first screw (9) passes through the auxiliary bushing and the other end of the first screw (9) is screwed onto the first bushing (1). The front end of the fourth threaded bushing (4) is provided with a toggle member (10). The third transmission protrusion (702) is connected to the toggle member (10).

2. The American standard lock cylinder with adjustable length function according to claim 1, characterized in that: The auxiliary bushing is divided into a second bushing (2) and / or a third bushing (3).

3. The American standard lock cylinder with adjustable length function according to claim 2, characterized in that: The second bushing (2) is provided with a second mounting port (201) and a first screw hole (202), and the first screw (9) passes through the first screw hole (202).

4. The American standard lock cylinder with adjustable length function according to claim 3, characterized in that: The second mounting port (201) is provided with a first recess (203), and the front end of the second bushing (2) is provided with a first protrusion (204).

5. A standard lock cylinder with adjustable length function according to claim 2, characterized in that: The rear end surface of the third bushing (3) is provided with a fourth mounting port (301) and a second screw hole (302), the front end surface of the third bushing (3) is provided with a second protrusion (304), the first screw (9) passes through the second screw hole (302), and the side of the fourth mounting port (301) is provided with a second recess (303).

6. The American standard lock cylinder with adjustable length function according to claim 5, characterized in that: The fourth mounting port (301) is also provided with a second extension shaft (6), the front end of the second extension shaft (6) is provided with a second transmission protrusion (601), and the rear end of the second extension shaft (6) is provided with a second torsion groove (602).

7. The American standard lock cylinder with adjustable length function according to claim 1, characterized in that: The inner wall of the third mounting port (402) is provided with a third recess (404).

8. A US standard lock cylinder with adjustable length function according to claim 1 or 7, characterized in that: The third mounting port (402) is also provided with a first extension shaft (5), the rear end of the first extension shaft (5) is provided with a first torsion groove (501), and the front end of the first extension shaft (5) is provided with a first transmission protrusion (502).

9. A standard lock cylinder with adjustable length function according to claim 1, characterized in that: The outer surface of the fourth threaded bushing (4) is provided with a guide groove (401).

10. A standard lock cylinder with adjustable length function according to claim 1, characterized in that: The third transmission protrusion (702) is connected to the actuating member (10) via a second screw (11).

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