Stay lock with adjustable length

Abstract

The invention relates to the technical field of lock structures, in particular to a length-adjustable dead lock which comprises a front end portion, a lock hole is formed in the middle of the front end portion, a rotating disc is mounted on the front end portion, a return spring is mounted between the rotating disc and the front end portion, a protruding portion is fixedly mounted on the rotating disc, and the protruding portion is fixedly connected with the front end portion. When the length of the spring bolt assembly is too short or too long, the length of the whole spring bolt assembly can be adjusted according to actual requirements by adjusting the positions of the clamping block in different limiting grooves, the extension rod is locked through the positioning bolt, and length adjustment of the rotating rod is achieved; the protective cover is simple in structure and suitable for door bodies with different thicknesses, the phenomenon that the length of a traditional dead lock cannot be adjusted and is not matched with the door body is avoided, Bluetooth connection between a mobile phone and the dead lock is achieved by connecting the Bluetooth connector in the protective cover through mobile phone Bluetooth, and when a key is lost or not carried, the door can be opened through mobile phone operation by manually downloading a related control APP.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lock structure, in particular to a length-adjustable deadbolt. BACKGROUND

[0002] For most people, the most familiar lock is the standard deadbolt on the door, the ordinary deadbolt has a movable bolt or latch inserted into the door, which can be extended from the side of the door body. The bolt is against a recess in the door frame. When the lock is turned, the bolt is inserted into the recess in the door frame, fixing the door. When the bolt is retracted, the door can be freely opened and closed. The deadbolt has only one mission, that is, to allow the person with the key to easily move the bolt, and it is difficult for the person without the key to move it.

[0003] At present, the deadbolt is usually opened and closed by a key during use. When the key is not carried or lost, the deadbolt cannot be opened. Therefore, a deadbolt without a key and capable of remote control can solve this problem. Moreover, the current deadbolt is fixed and cannot be adjusted in length according to the thickness of the door body, resulting in strong adaptability of the deadbolt and inability to adjust the length of the deadbolt to be suitable for various door bodies. Therefore, a length-adjustable deadbolt is needed to solve this problem. SUMMARY

[0004] The purpose of the present application is to provide a length-adjustable deadbolt to solve the problems in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a length-adjustable deadbolt, comprising a front end portion, a lock hole is formed in the middle of the front end portion, a rotating disc is installed on the front end portion, a return spring is installed between the rotating disc and the front end portion, a protruding portion is fixedly installed on the rotating disc, an opening on the protruding portion is tightly inserted with a rotating rod, an extension rod is installed on the rotating rod, a protective cover is installed on the end of the rotating rod away from the extension rod, wherein the protective cover is fixedly connected with the rear end portion, a main control chip is installed in the protective cover, the main control chip is connected with a Bluetooth connector, a driving assembly is installed in the protective cover, a positioning groove is fixedly installed on the rear end portion and tightly inserted with the rotating rod, and a lock tongue assembly is penetrated through the middle of the rotating rod.

[0006] As a preferred technical scheme of the present application, a limiting plate is installed on the lock tongue assembly, an opening is formed in the limiting plate, the opening is penetrated through by a lock tongue, a tongue strip is fixedly installed on the lock tongue, and a limiting groove is formed in the tongue strip.

[0007] As a preferred technical scheme of the present application, the partition plate divides the limiting groove into three parts, and the divided grooves are tightly connected with the clamping blocks, the clamping blocks are on the transmission plate, a U-shaped notch is formed on the lock tongue assembly, the transmission plate is on the U-shaped notch, a frame is arranged on the outer end of the transmission plate, and a driving circular table is arranged on both sides of the transmission plate.

[0008] As a preferred technical scheme of the present application, the driving circular table is fixedly installed on both sides of the transmission plate, a limiting block is fixedly installed on the transmission plate, the protrusions on the driving circular table are between the limiting blocks on the transmission plate, and a hollow groove is formed in the middle of the driving circular table, and the hollow groove is penetrated by the rotating rod.

[0009] As a preferred technical scheme of the present application, a motor is installed on the driving assembly, a rotating rod is installed on the output end of the motor, a second bevel gear is fixedly installed on the rotating rod, a first bevel gear is engaged with the bottom end of the second bevel gear, and the first bevel gear is fixedly installed on the rotating rod.

[0010] As a preferred technical scheme of the present application, a battery is installed in the protective cover, the motor and the main control chip are electrically connected with the battery, and a heat dissipation fin is arranged on one side of the main control chip.

[0011] As a preferred technical scheme of the present application, three first threaded holes are formed on the extension rod, a second threaded hole is formed on the rotating rod, and one of the first threaded holes coincides with the second threaded hole and is locked by a locking bolt.

[0012] As a preferred technical scheme of the present application, a stabilizing rod is fixedly installed on both sides of the rear end portion, a slot is formed on the lock tongue assembly, and the stabilizing rod penetrates the slot and is connected to the slot on the rotating disc on the front end portion.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] (1) The present application is a length-adjustable dead lock, a limiting groove is formed on the tongue strip of the lock tongue assembly of the dead lock, the clamping blocks on the transmission plate are tightly inserted into the grooves separated by the partition plate, when the length of the lock tongue assembly is too short or too long, the position of the clamping block in the limiting groove can be adjusted according to actual needs to adjust the length of the entire lock tongue assembly, the length of the rotating rod is adjusted by locking the extension rod with the positioning bolt, and the present application is suitable for door bodies of different thicknesses, and solves the problem that the length of the traditional dead lock cannot be adjusted and the door body is not compatible.

[0015] (2) The present application is a length-adjustable dead bolt, which is connected with the Bluetooth connector in the protective cover through the mobile phone Bluetooth connection, realizes the Bluetooth connection between the mobile phone and the dead bolt, realizes the rotation of the rotating rod on the first bevel gear through the starting of the driving assembly control motor, and then facilitates the position adjustment of the lock tongue, and in the case of key loss or no key, the APP controlled by manual download can realize the mobile phone operation to open the door, which is more convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0017] Figure 1 is a structure diagram of a length-adjustable dead bolt according to an embodiment of the present application;

[0018] Figure 2 is a plan view of a length-adjustable dead bolt according to an embodiment of the present application;

[0019] Figure 3 is a structure diagram of a lock tongue assembly of a length-adjustable dead bolt according to an embodiment of the present application;

[0020] Figure 4 is a structure diagram of a transmission plate of a length-adjustable dead bolt according to an embodiment of the present application;

[0021] Figure 5 is a structure diagram of the inside of a rotating rod of a length-adjustable dead bolt according to an embodiment of the present application.

[0022] Reference signs:

[0023] 1, front end part; 2, lock hole; 3, rear end part; 4, protruding part; 5, lock tongue assembly; 6, limiting plate; 7, lock tongue; 8, frame; 9, slot; 10, stabilizing rod; 11, positioning groove; 12, rotating rod; 13, rotating disc; 14, return spring; 15, U-shaped notch; 16, tongue strip; 17, limiting groove; 18, partition; 19, opening; 20, spring; 21, clamping block; 22, transmission plate; 23, sliding groove; 24, driving circular table; 25, hollow groove; 26, protruding block; 27, limiting block; 28, extension rod; 29, first threaded hole; 30, second threaded hole; 31, locking bolt; 32, first bevel gear; 33, second bevel gear; 34, rotating rod; 35, motor; 36, battery; 37, heat dissipation fin; 38, main control chip; 39, Bluetooth connector; 40, protective cover. DETAILED DESCRIPTION

[0024] The invention will be further described below with reference to the drawings and specific embodiments:

[0025] Embodiment 1

[0026] Reference Figure 1 And Figure 5 The embodiment 1 comprises a front end part 1, a lock hole 2 is arranged in the middle of the front end part 1, a rotating disc 13 is installed on the front end part 1, a return spring 14 is installed between the rotating disc 13 and the front end part 1, a protruding part 4 is fixedly installed on the rotating disc 13, an opening on the protruding part 4 is tightly inserted with a rotating rod 12, an extension rod 28 is installed on the rotating rod 12, a protective cover 40 is installed on the end of the rotating rod 12 away from the extension rod 28, the protective cover 40 is fixedly connected with the rear end part 3, a main control chip 38 is installed in the protective cover 40, the main control chip 38 is connected with a Bluetooth connector 39, a driving assembly is installed in the protective cover 40, a positioning groove 11 is fixedly installed on the rear end part 3 and tightly inserted with the rotating rod 12, a lock tongue assembly 5 is penetrated through the middle of the rotating rod 12, a battery 26 is installed in the protective cover 40, the motor 35 and the main control chip 38 are electrically connected with the battery 36, and a heat dissipation fin 37 is arranged on one side of the main control chip 38;

[0027] In the embodiment, the Bluetooth connector 39 can be connected with the mobile phone Bluetooth, so as to realize the Bluetooth connection between the mobile phone and the deadbolt, and when the key is lost or not taken, the mobile phone can be operated to open the door by manually downloading the related control APP.

[0028] Embodiment 2

[0029] Reference Figures 1 to 4The embodiment 2 is used to further illustrate the embodiment 1, the lock tongue assembly 5 is provided with the limiting plate 6, the limiting plate 6 is provided with the opening 19, the opening 19 is penetrated by the lock tongue 7, the lock tongue 7 is fixedly provided with the tongue strip 16, the limiting slot 17 is provided in the tongue strip 16, the limiting slot 17 is fixedly provided with the partition plate 18, the limiting slot 17 is divided into three parts by the partition plate 18, and the limiting slot 17 is tightly connected with the clamping block 21, the clamping block 21 is arranged on the transmission plate 22, the U-shaped notch 15 is provided in the lock tongue assembly 5, the transmission plate 22 is arranged in the U-shaped notch 15, the frame 8 is arranged at the outer end of the transmission plate 22, the driving circular table 24 is arranged at the two side ends of the transmission plate 22, the protruding block 26 is fixedly arranged at the two side ends of the driving circular table 24, the limiting block 27 is fixedly arranged on the transmission plate 22, the protruding block 26 of the driving circular table 24 is arranged between the limiting blocks 27 of the transmission plate 22, the hollow slot 25 is provided in the middle of the driving circular table 24, the hollow slot 25 is penetrated by the rotating rod 12, the motor 35 is arranged on the driving assembly, the rotating rod 34 is arranged at the output end of the motor 35, the second bevel gear 33 is fixedly arranged on the rotating rod 34, the first bevel gear 32 is engaged with the bottom end of the second bevel gear 33, the first bevel gear 32 is fixedly arranged on the rotating rod 12, the three groups of first threaded holes 29 are provided in the extension rod 28, the second threaded hole 30 is provided in the rotating rod 12, one of the first threaded holes 29 is coincided with the second threaded hole 30 and is locked by the locking bolt 31, the stabilizing rod 10 is fixedly arranged at the two side ends of the rear end part 3, the slot 9 is provided in the lock tongue assembly 5, and the stabilizing rod 10 penetrates the slot 9 and is connected into the slot on the rotating disc 13 of the front end part 3;

[0030] In the embodiment, the extension rod 28 is provided with three groups of different first threaded holes 29, the length of the rotating rod is adjusted by locking the extension rod 28 by the locking bolt 31, the length of the lock tongue assembly 5 can be adjusted according to actual needs by adjusting the position of the clamping block 21 in the different slots in the limiting slot 17, and the embodiment is suitable for the door body with different thicknesses, and solves the phenomenon that the length of the traditional dead bolt cannot be adjusted and is not matched with the door body.

[0031] In practical application, the lock of this invention is configured to rotate a rotating disk 13 at the front end by turning a key. A return spring 14 is provided inside the rotating disk 13. When the key is turned, the rotating rod 12 rotates; when the key is released, it automatically returns to its original position due to the action of the return spring 14. An extension rod 28 is installed at one end of the rotating rod 12. The extension rod 28 has three different sets of first threaded holes 29. The position of the extension rod 28 is adjusted according to the required length, and the length of the rotating rod is adjusted by locking the extension rod 28 with a locking bolt 31. A limiting groove 17 is provided on the tongue of the locking tongue assembly 5 of the rotating rod. The limiting groove 17 is divided into three parts by a partition 18. The grooves separated by the partition 18 are tightly fitted and inserted into the locking block 21 on the transmission plate 22. When the length of the locking tongue assembly is too short or too long, the locking block 21 adjusts within the limiting groove 17. The length of the entire latch assembly 5 can be adjusted according to actual needs based on the position within different slots, making it suitable for doors of different thicknesses. This solves the problem of traditional deadbolts having unadjustable lengths and being incompatible with door bodies. A protective cover 40 is installed on the rotating rod 12, and a drive assembly is located inside the protective cover 40. By connecting the mobile phone to the Bluetooth connector 39 inside the protective cover 40 via Bluetooth, a Bluetooth connection between the mobile phone and the deadbolt can be achieved. If the key is lost or not carried, the door can be opened by manually downloading the relevant control APP. The drive assembly is activated, which drives the second bevel gear 33 on the rotating rod 34 via the motor 35. Since the second bevel gear 33 meshes with the first bevel gear 32, the rotating rod 12 on the first bevel gear 32 is rotated, thereby adjusting the position of the latch 7 on the latch assembly 5. The entire invention is convenient, quick, safe, and reliable.

[0032] In the description of this invention, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "rear," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable length deadbolt, characterized by, The utility model provides a lock, including front end (1), the lock hole (2) is opened in the middle of front end (1), the rotary disc (13) is installed on front end (1), the return spring (14) is installed between rotary disc (13) and front end (1), the fixed mounting of protruding portion (4) is installed on rotary disc (13), the opening on protruding portion (4) is closely inserted with rotary rod (12), the extension rod (28) is installed on rotary rod (12), the protective cover (40) is installed on the one end of rotary rod (12) away from extension rod (28), wherein the protective cover (40) is fixedly connected with rear end (3), the main control chip (38) is installed in the protective cover (40), the main control chip (38) is connected with bluetooth connector (39), the drive assembly is installed in the protective cover (40), the fixed mounting of positioning groove (11) is installed on rear end (3) and is closely inserted with rotary rod (12), the lock tongue assembly (5) is penetrated in rotary rod (12).

2. A length-adjustable deadbolt according to claim 1, wherein, The limiting plate (6) is installed on the lock tongue assembly (5), the opening (19) is opened on the limiting plate (6), the opening (19) is penetrated by the lock tongue (7), the fixed mounting of tongue strip (16) is installed on the lock tongue (7), the limiting slot (17) is opened on the tongue strip (16).

3. A length-adjustable deadbolt according to claim 2, wherein, The fixed mounting of baffle (18) is installed in the limiting slot (17), the limiting slot (17) is divided into three parts'slots by baffle (18), and the slot after separation is closely clamped with the clamping block (21), the clamping block (21) is on the transmission plate (22), the U-shaped notch (15) is opened on the lock tongue assembly (5), the transmission plate (22) is on the U-shaped notch (15), the frame (8) is equipped on the outer end of transmission plate (22), the drive circular platform (24) is installed on both sides of transmission plate (22).

4. A length-adjustable deadbolt according to claim 3, wherein, The fixed mounting of lug (26) is installed on both sides of drive circular platform (24), the fixed mounting of limiting block (27) is installed on transmission plate (22), the lug (26) on drive circular platform (24) is between the limiting block (27) on transmission plate (22), and the hollow slot (25) is opened in the middle of drive circular platform (24), the hollow slot (25) is penetrated by rotary rod (12).

5. An adjustable length deadbolt according to claim 1 wherein, The motor (35) is installed on the drive assembly, the output end of motor (35) is installed with the rotating rod (34), the fixed mounting of second bevel gear (33) is installed on the rotating rod (34), the first bevel gear (32) is engaged on the bottom of second bevel gear (33), the first bevel gear (32) is fixedly installed on rotary rod (12).

6. A length-adjustable deadbolt according to claim 5, wherein, The battery (26) is installed in the protective cover (40), the motor (35) and main control chip (38) are electrically connected with battery (36), the one side of main control chip (38) is equipped with the heat dissipation fin (37).

7. An adjustable length deadbolt according to claim 1 wherein, Three groups of first threaded holes (29) are opened on the extension rod (28), the second threaded hole (30) is opened on the rotary rod (12), wherein one first threaded hole (29) coincides with the second threaded hole (30) and is locked by locking bolt (31).

8. An adjustable length deadbolt according to claim 1 wherein, The rear end part (3) is fixedly installed with a stabilizer bar (10) on both sides, the lock tongue assembly (5) is provided with a slot (9), and the stabilizer bar (10) penetrates through the slot (9) and is connected to the slot on the rotating disc (13) on the front end part (3).

Images