Standby unlocking device for intelligent lock

Abstract

The utility model discloses a spare unlocking device for an intelligent lock, which belongs to the field of coded locks, and comprises a push rod, a rod sleeve, a bayonet lock and a coded lock, the push rod is connected with an unlocking plate, the push rod is located in the rod sleeve and is in sliding fit with the rod sleeve, and the bayonet lock is connected with the unlocking plate. A pin body of the clamping pin is located in the rod sleeve and makes contact with the push rod, a clamping groove of the clamping pin stretches out of a sliding groove in the rod sleeve, the coded lock is located on one side of the rod sleeve, and a part of the clamping groove stretches into the coded lock. According to the standby unlocking device of the intelligent lock, the password disk lock is designed based on the unlocking requirement of the intelligent lock, and the problem that a user of the intelligent lock forgets to carry a standby key can be thoroughly solved.

Description

Technical Field

[0001] The utility model relates to the field of password locks, in particular to a spare unlocking device for an intelligent lock. Background Art

[0002] The password dial lock is mainly used in places with high security levels such as safes and does not serve as a spare key for intelligent locks. The reason is that most current password locks use physical keys as spare keys. However, when the intelligent lock cannot be opened due to power failure, electronic component failure, etc., or when the user forgets to bring the key, the intelligent lock cannot be opened with the spare key. That is, the existing intelligent locks cannot truly be separated from keys, and in special cases, the spare key needs to be remembered to prevent emergencies.

[0003] A new type of door lock with an anti-theft device for adding unlocking and locking holes disclosed in the Chinese patent document with the publication number CN205805189U includes a lock dial, a lock core, an inner panel handle, an outer panel handle, and an anti-theft device. Among them, a lock hole is provided on the lock dial, and the lock core is arranged inside the lock dial; the anti-theft device is fixed to the front of the lock dial by fastening screws and realizes anti-theft through a shifting and sliding unlocking and locking hole channel; the anti-theft device includes a main board, a sub-board, and a digital password dial; the main board is provided with a first lock hole, an unlocking dial hole, and a digital password dial fixing hole; the sub-board is provided with a second lock hole, an unlocking dial, and a password dial lock piece; the digital password dial includes a digital disk and a password dial shaft. The password dial lock of the new type of door lock disclosed in the above patent does not serve as a spare key, its design is relatively complex, and it is not compatible with the use requirements of intelligent locks. Summary of the Utility Model

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a spare unlocking device for an intelligent lock, a password dial lock designed based on the unlocking requirements of the intelligent lock, which can realize unlocking by entering a password, thus completely solving the problem that intelligent lock users forget to bring the spare key.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A spare unlocking device for an intelligent lock provided by the utility model includes a push rod, a rod sleeve, a retaining pin, and a password lock. An unlocking piece is connected to the push rod. The push rod is located inside the rod sleeve and is slidably matched with the rod sleeve. The pin body of the retaining pin is located inside the rod sleeve and is in contact with the push rod. The card slot of the retaining pin extends out from the sliding groove on the rod sleeve. The password lock is located on one side of the rod sleeve, and a part of the card slot extends into the password lock.

[0007] A further technical solution of the present utility model is that it further includes a fixing plate. A limiting groove is provided on the push rod located inside the fixing plate. The pin body is adapted to the shape of the limiting groove and is located inside the limiting groove.

[0008] A further technical solution of the present utility model is that one end of the push rod is provided with an unlocking groove, the other end of the push rod is provided with a connecting groove, and the end of the unlocking piece is connected to the inner wall of the connecting groove through a pin or a screw.

[0009] A further technical solution of the present utility model is that the password lock includes an outer dial, an inner dial and at least one password disk. The outer dial is connected to the inner dial through the rotating shaft. A shaft sleeve is provided on the rotating shaft, and at least one password disk is sleeved on the shaft sleeve.

[0010] A further technical solution of the present utility model is that the password lock includes two password disks. First-class gaskets are arranged on the outer sides of the two password disks, and second-class gaskets are arranged between the two password disks.

[0011] A further technical solution of the present utility model is that it further includes a fixing plate. An elastic body is provided between the first-class gasket far from the inner dial and the fixing plate.

[0012] A further technical solution of the present utility model is that a sleeve hole is provided in the middle of the inner dial. The inner dial is connected to one end of the rotating shaft through a screw passing through the sleeve hole, and a plurality of mounting holes for mounting the dial rod are provided on the inner dial.

[0013] A further technical solution of the present utility model is that it further includes a receiving cylinder. The receiving cylinder is fixed inside the fixing plate, and the rod sleeve and the password lock are located inside the receiving cylinder.

[0014] A further technical solution of the present utility model is that it further includes a handle cap. The handle cap is covered and connected to the fixing plate or the receiving cylinder.

[0015] A further technical solution of the present utility model is that it further includes a key piece. The key piece is inserted into the fixing plate, and an unlocking head adapted to the unlocking groove is provided on the key piece.

[0016] The beneficial effects of the present utility model are:

[0017] The spare unlocking device for the intelligent lock provided by the present utility model is provided with an unlocking piece for unlocking the intelligent lock. When the password lock is in the unlocked state, the unlocking slots of the dials and the sealing disk on the password lock are aligned, and the pin can slide relative to the unlocking slots on the password lock, thereby realizing unlocking. After the pin is unlocked, the unlocking piece can be pushed to extend along the rod sleeve by the push rod, and the unlocking piece can also rotate relative to the rod sleeve, so as to adapt to the unlocking scenario of the intelligent key, and achieve the purpose of using the unlocking piece as the unlocking key of the intelligent key. This is equivalent to having an additional spare key for the intelligent lock, completely solving the problems of the failure of the intelligent lock and the loss of the key, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the first three-dimensional view of the spare unlocking device for the intelligent lock provided in the specific embodiment of the present patent;

[0019] Figure 2 is the second three-dimensional view of the spare unlocking device for the intelligent lock provided in the specific embodiment of the present patent, without the handle cap;

[0020] Figure 3 is the three-dimensional view of the password lock provided in the specific embodiment of the present patent;

[0021] Figure 4 is provided in the specific embodiment of the present patent Figure 3 partial view of;

[0022] Figure 5 is the three-dimensional view of the outer dial provided in the specific embodiment of the present patent;

[0023] Figure 6 is the structural diagram of the pin provided in the specific embodiment of the present patent;

[0024] Figure 7 is the structural diagram of the rod sleeve provided in the specific embodiment of the present patent;

[0025] Figure 8 is the structural diagram of the key piece provided in the specific embodiment of the present patent.

[0026] In the figure: 1, push rod; 2, unlocking piece; 3, rod sleeve; 4, pin; 41, pin body; 42, card slot; 5, password lock; 6, fixing plate; 11, limit slot; 12, unlocking slot; 13, connecting slot; 7, pin; 51, outer dial; 52, inner dial; 53, password disk; 54, rotating shaft; 55, shaft sleeve; 56, first type of gasket; 57, second type of gasket; 58, elastic body; 521, sleeve hole; 8, screw; 9, lever; 522, mounting hole; 10, receiving cylinder; 20, handle cap; 30, key piece; 301, unlocking head; 40, unlocking slot; 43, protrusion; 511, scale disk; 31, sliding slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0028] As Figures 1 to 8 shown, the intelligent lock backup unlocking device provided in this embodiment includes a push rod 1, an unlocking piece 2, a rod sleeve 3, a retaining pin 4, and a password lock 5. An unlocking piece 2 is connected to the push rod 1. In order to adapt to the unlocking scenario of the intelligent key, the unlocking piece 2 needs to be inserted into the unlocking hole of the intelligent lock and then rotated, that is, translated and then rotated, so as to unlock the intelligent lock. Correspondingly, the push rod 1 in this embodiment is located inside the rod sleeve 3 and is slidably matched with the rod sleeve 3. Due to the constraint of the rod sleeve 3, the push rod 1 can rotate relative to the rod sleeve 3 and can also translate relative to the rod sleeve 3. In this way, the push rod 1 can drive the unlocking piece 2 to translate and rotate. In order to enable the intelligent lock backup unlocking device to act as a backup key, the premise that the unlocking piece 2 can translate and rotate is to obtain the correct password. In this embodiment, the translation of the unlocking piece 2 is restricted. That is to say, only when the correct password is input into the password lock 5, the unlocking piece 2 can translate. Therefore, a retaining pin 4 is provided. The pin body 41 of the retaining pin 4 is located inside the rod sleeve 3 and is in contact with the push rod 1, and the two are not fixedly connected. When the push rod 1 translates, it will drive the retaining pin 4 to translate. However, when the push rod 1 rotates, since the push rod 1 is not fixedly connected to the pin body 41, the pin body 41 cannot restrict the rotation of the push rod 1. The slot 42 of the retaining pin 4 extends out of the sliding slot 31 on the rod sleeve 3 and is slidably matched with the sliding slot 31, that is, the movement of the retaining pin 4 is restricted by the sliding slot 31 and can only translate along the sliding slot 31. The password lock 5 is located on one side of the rod sleeve 3, and a part of the slot 42 extends into the password lock 5. When the unlocking slots 40 of the dials and the sealing plate 53 on the password lock 5 are aligned, the retaining pin 4 can slide relative to the unlocking slot 40 on the password lock 5. The password lock 5 is a dial password lock. Only when the correct password is input into the password lock 5, the unlocking slots 40 of the dials and the sealing plate 53 on the password lock 5 will be aligned, and the retaining pin 4 can translate along the sliding slot 31. In this way, the unlocking piece 2 can translate and rotate only when the correct password is obtained, so as to adapt to the unlocking scenario of the intelligent key and unlock the intelligent lock, achieving the purpose of using the unlocking piece as the unlocking key of the intelligent key. This is equivalent to the intelligent lock having an additional backup key that requires a password. As long as the user remembers the password and does not need to carry a physical key anymore, this completely solves the problems such as the failure of the intelligent lock and the loss of the key.

[0029] The spare unlocking device of the intelligent lock provided in this embodiment further includes a fixing plate 6. A limiting groove 11 is provided on the push rod 1 located inside the fixing plate 6. The shape of the pin body 41 is adapted to that of the limiting groove 11, and the pin body 41 is located in the limiting groove 11. Since the pin body 41 is located in the limiting groove 11 and is in contact with the push rod 1, the pin body 41 does not limit the rotation of the push rod 1. However, when the push rod 1 moves linearly, it will drive the pin body 41 to move linearly through the limiting groove 11. Similarly, when the pin body 41 is constrained to move linearly along the sliding groove 31, since the pin body 41 is located in the limiting groove 11, the push rod 1 cannot move linearly either. At this time, even if the pin body 41 can still rotate, the unlocking piece 2 cannot reach the unlocking hole of the intelligent lock. That is to say, whether the unlocking piece 2 can be unlocked depends on whether the pin body 41 can move linearly.

[0030] The spare unlocking device of the intelligent lock provided in this embodiment further includes a key piece 30. The key piece 30 is inserted into the fixing plate 6. An unlocking groove 12 is provided at one end of the push rod 1. An unlocking head 301 adapted to the unlocking groove 12 is provided on the key piece 30. When the unlocking head 301 of the key piece 30 is inserted into the unlocking groove 12, it can push the push rod 1 to move linearly inward and rotate. A connecting groove 13 is provided at the other end of the push rod 1. The end of the unlocking piece 2 is connected to the inner wall of the connecting groove 13 through a pin 7 or a screw. When the push rod 1 moves linearly and rotates, the unlocking piece 2 is also connected to the push rod 1, and the unlocking piece 2 will follow the push rod 1 to move linearly and rotate.

[0031] The password lock 5 includes an outer dial 51, an inner dial 52, and at least one password disk 53. Unlocking grooves 40 are provided at the edges of the inner dial 52 and each password disk 53. The outer dial 51 is connected to the inner dial 52 through a rotating shaft 54. A bushing 55 is provided on the rotating shaft 54. At least one password disk 53 is sleeved on the bushing 55. Preferably, the password lock 5 has two password disks 53. The latch 4 has two card slots 42. The edge of the password disk 53 is located within the card slot 42. Correspondingly, the latch 4 also has three protrusions 43. The protrusions 43 extend into the gaps between the password disks 53 and the gaps between the password disks 53 and the inner dial 52. The three protrusions 43 and the two card slots 42 are alternately distributed. When the inner dial 52 and at least one password disk 53 rotate, the latch 4 does not interfere with the rotation of the password disk 53 or the inner dial 52. However, when the unlocking grooves 40 of the inner dial 52 and the two password disks 53 are not aligned, the inner dial 52 and the two password disks will prevent the latch 4 from translating. Since the dial password lock is a password lock already used in the market, this embodiment is an improvement and application of alignment. Therefore, the description of how the password lock 5 realizes the alignment of the unlocking grooves 40 by inputting the correct numbers is omitted in this embodiment. One can also refer to the Chinese patent with the patent application number 202420981864.5. Further preferably, the password lock 5 includes two password disks 53. A first type of gasket 56 is provided on the outer sides of the two password disks 53. A second type of gasket 57 is provided between the two password disks 53. The thickness of the second type of gasket 57 is greater than that of the first type of gasket 56 because the second type of gasket 57 has the function of adjusting the distance between the two password disks 53. The intelligent lock backup unlocking device provided in this embodiment further includes a fixing plate 6. An elastic body 58 is provided between the first type of gasket 56 away from the inner dial 52 and the fixing plate 6. The elastic body 58 is preferably a corrugated spring or a common spring. The relative movement of the inner dial 52 and at least one password disk 53 of the password lock 5 should not be overly restricted axially along the rotating shaft 54, as it is not easy to adapt to different forces used during unlocking. Due to its slight spring-back effect, the elastic body 58 is very suitable for restricting the axial movement of the two password disks 53 along the rotating shaft 54, that is, allowing them to have a slight displacement axially. Further preferably, a sleeve hole 521 is provided in the middle of the inner dial 52. The inner dial 52 is connected to one end of the rotating shaft 54 through a screw 8 passing through the sleeve hole 521. The other end of the rotating shaft 54 is connected to the outer dial 51. Thus, when the outer dial 51 rotates, it will drive the inner dial 52 to rotate. There is a scale disk 511 around the outer dial 51, which facilitates the user to input the password by referring to the scale disk 511. Multiple mounting holes 522 for mounting the dial rod 9 are provided on the inner dial 52. A dedicated dial rod can be provided on the inner dial 52, or a screw can be screwed into the circular through-hole 227 to act as a dial rod. The password disk 53 can be driven to rotate through the dial rod.

[0032] The spare unlocking device of the intelligent lock provided in this embodiment further includes a receiving cylinder 10. The receiving cylinder 10 is fixed to the inner side of the fixing plate 6. The rod sleeve 3 and the password lock 5 are located inside the receiving cylinder 10. The receiving cylinder 10 can facilitate the installation of the spare unlocking device of the intelligent lock and can also protect structures such as the rod sleeve 3 and the password lock 5 from being knocked. In addition, the spare unlocking device of the intelligent lock provided in this embodiment further includes a handle cap 20. The handle cap 20 is connected to the fixing plate 6 in a covering manner. When it is necessary to input a password by turning the outer dial 51, the handle cap 20 is opened, so that the outer dial 51 is exposed. When it is not necessary to input a password, the handle cap 20 can prevent dust.

[0033] The present utility model is described by way of preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present utility model. The present utility model is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the scope of protection of the present utility model.

Claims

1. A smart lock backup unlocking device, characterized in that: include: A push rod (1), wherein the push rod (1) is connected to a unlocking piece (2); A rod sleeve (3), wherein the push rod (1) is located in the rod sleeve (3) and is slidably matched with the rod sleeve (3); A bayonet pin (4), wherein a pin body (41) of the bayonet pin (4) is located in the rod sleeve (3) and in contact with the push rod (1), and a bayonet groove (42) of the bayonet pin (4) extends from a slide groove (31) on the rod sleeve (3); A combination lock (5) is located on one side of the rod sleeve (3), and a portion of the card slot (42) extends into the combination lock (5).

2. The smart lock backup unlocking device according to claim 1, characterized in that: Also includes a fixing plate (6); A limiting groove (11) is provided on the push rod (1) located on the inner side of the fixing plate (6); The pin body (41) is matched in shape to the limiting groove (11) and is located in the limiting groove (11).

3. The intelligent lock backup unlocking device according to claim 2, characterized in that: One end of the push rod (1) is provided with an unlocking groove (12); The other end of the push rod (1) is provided with a connecting groove (13); The end of the unlocking piece (2) is connected to the inner wall of the connecting groove (13) via a pin (7) or a screw.

4. The smart lock backup unlocking device according to claim 1, characterized in that: The combination lock (5) comprises an outer dial (51), an inner dial (52) and at least one combination disk (53); The outer dial (51) is connected to the inner dial (52) via a rotating shaft (54); The rotating shaft (54) is provided with a shaft sleeve (55); At least one code disk (53) is sleeved on the shaft sleeve (55).

5. The intelligent lock backup unlocking device according to claim 4, characterized in that: The combination lock (5) comprises two combination disks (53); The outer sides of the two code disks (53) are provided with first type gaskets (56); A second type gasket (57) is arranged between the two code disks (53).

6. The intelligent lock backup unlocking device according to claim 5, characterized in that: Also includes a fixing plate (6); An elastic body (58) is arranged between the first type gasket (56) far away from the inner dial (52) and the fixing plate (6).

7. The intelligent lock backup unlocking device according to claim 4, characterized in that: A sleeve hole (521) is provided in the middle of the inner dial (52); The inner dial (52) is connected to one end of the rotating shaft (54) via a screw (8) passing through the sleeve hole (521); The inner dial (52) is provided with a plurality of mounting holes (522) for mounting the shifting rod (9).

8. The intelligent lock backup unlocking device according to claim 2, characterized in that: Also includes a receiving tube (10); The accommodating cylinder (10) is fixed on the inner side of the fixing plate (6); The rod sleeve (3) and the combination lock (5) are located in the accommodating tube (10).

9. The intelligent lock backup unlocking device according to claim 8, characterized in that: Also includes a handle cap (20); The handle cap (20) is covered on the fixing plate (6) or the accommodating cylinder (10).

10. The smart lock backup unlocking device according to claim 2, characterized in that: Also includes a key blade (30); The key blade (30) is plugged into the fixing plate (6).

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