Smart lock with a key-replaceable electronic unit
The key-replaceable electronic unit in smart locks simplifies installation and maintenance by allowing easy switching between lock types, addressing the inefficiencies of conventional smart lock replacements.
Patent Information
- Application Number
- DE202025001780
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-03-05
- Estimated Expiration
- 2035-06-30
AI Technical Summary
Conventional smart lock systems require complete replacement when switching to different models or systems, leading to cumbersome procedures and resource waste.
An intelligent lock with a key-replaceable electronic unit that allows for quick installation and removal of electronic components, such as password and fingerprint locks, through a key-operated locking mechanism.
Facilitates quick installation and maintenance of electronic units, reducing labor and resource waste by enabling easy switching between different lock types without replacing the entire system.
Smart Images

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Abstract
Description
Technical field
[0001] The present invention relates to an intelligent lock, in particular an intelligent lock with an electronic unit that can be replaced by a key. State of the art
[0002] With technological advancements, conventional mechanical security locking systems for doors are increasingly being replaced by smart locking systems. Common smart lock systems include password-based electronic locks and fingerprint-based electronic locks. However, a problem arises during installation and use: if, after installing a smart lock, one wishes to switch to a different model or system with different functions, the entire locking system must be replaced. Furthermore, multiple locks must be used to meet the diverse needs of users. This leads to cumbersome procedures and an increased workload, which in turn increases the strain on factory inventory and leaves some resources unused or wasted. Content of the invention
[0003] One embodiment of the present invention provides an intelligent lock with a key-replaceable electronic unit to solve the problems of the related technology, and the technical solutions are as follows: In one embodiment of the present invention, an intelligent lock with a key-replaceable electronic unit comprises the following: a case; an electronic unit that is detachably attached to the housing; a locking unit provided inside the housing, wherein the locking unit enables the locking of the electronic unit to the housing; and a key adapted to the locking unit, the locking unit being controlled by the key.
[0004] In one embodiment, openings are provided in the housing which are adapted to the shape of the electronic unit, wherein when the electronic unit is attached to the housing, the electronic unit is embedded in the housing through the openings, and wherein the surface of the electronic unit is flush with the surface of the housing.
[0005] In one embodiment, the electronic unit comprises the following: a housing body which is detachably arranged within the housing, wherein the housing body has two first detent slots, and wherein part of the locking unit is engaged in the first detent slot; a retaining block that is provided at an end of the housing body furthest from the first locking groove.
[0006] In one embodiment, the lock comprises the following: a projection provided within the housing, wherein the projection rests against the retaining block when the housing body is arranged within the housing, and wherein the projection is arranged above the retaining block; a first spring which is provided inside the housing, wherein the first spring rests against the housing body when the housing body is inside the housing.
[0007] In one embodiment, the locking unit comprises the following: a rotating block that is located inside the housing; a lock cylinder arranged inside the housing, wherein the rotating block is arranged on the lock cylinder, wherein the lock cylinder has a keyhole suitable for receiving the key; a motion block arranged inside the housing, wherein the motion block is suitable for receiving the rotary block, the motion block moving horizontally when the rotary block is rotated; a second spring, positioned between the movement block and the housing; and a latching block that is arranged on the movement block, with the latching block engaging in the first latching function.
[0008] In one embodiment, the detent block has a triangular cross-section, wherein the first detent groove has an inverted "L" cross-section, and wherein the first detent groove has a chamfered edge adapted to the chamfered edge of the detent block.
[0009] In one embodiment, the motion block has a step-shaped notch, wherein the rotation block has a projection that is adapted to the step-shaped notch.
[0010] In one embodiment, a spring mounting part is provided on the movement block, wherein the second spring is attached to the spring mounting part.
[0011] In one embodiment, the locking unit further comprises the following: a limiting slide arranged below the movement block, wherein the limiting slide has a limiting groove and rests against the projection; a limiting block provided within the housing, wherein the limiting block is arranged in the limiting groove; a third spring, which is positioned between the slider and the housing.
[0012] In one embodiment, the lock comprises the following: a protective cover provided on the housing, wherein the housing includes a through-hole adapted to the keyhole, and the protective cover is arranged on this through-hole.
[0013] The advantages or beneficial effects of the above-mentioned technical solutions include at least the following: The locking unit is key-operated, facilitating quick installation and removal of the electronic unit, maintenance, battery replacement, and other operations. Furthermore, password and fingerprint locks can be switched to meet different user needs, reducing labor and resource waste associated with purchasing new door locks. The key-operated locking unit allows for quick installation and removal of the electronic unit, simplifying maintenance, battery replacement, and other operations.
[0014] The above overview serves only as a description and is in no way intended to be limiting. In addition to the schematic aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily understood by reference to the accompanying drawings and the following detailed description. Details of the drawings
[0015] Unless otherwise indicated, the same reference numerals in different drawings denote identical or similar components or elements. The drawings are not to scale. It should be understood that the drawings merely illustrate some embodiments of the present invention and should not be interpreted as limiting the scope of protection of this invention. Fig. 1 Schematic representation of the structure of the present invention; Fig. 2 Schematic representation of the explosion structure inside the housing in Fig. 1; Fig. 3 Schematic representation of the exploded view of the locking unit in Fig. 2; Fig. 4 Schematic representation of the structure of the housing body when locked with the locking unit; Fig. 5 Schematic representation of the structure of the first locking groove of the housing body; Fig. 6 Schematic representation of the structure of the retaining block on the housing body. Reference symbol list:
[0016] 100-intelligent castle; 110-case; 111-projection; 112-first spring; 120-Electronic unit; 121-Housing body; 122-First detent groove; 123-Retaining block; 124-Protective cover; 130-Locking unit; 131-Rotating block; 132-Lock cylinder; 133-Movement block; 134-Second spring; 135-Detent block; 136-Limiting slide; 137-Limiting block; 138-Third spring; 139-Attachment. Specific embodiments
[0017] Only certain exemplary embodiments are briefly described below. As those skilled in the art will recognize, the described embodiments can be modified in many ways without affecting the spirit or scope of the present invention. Therefore, the accompanying drawings and description should be considered essentially exemplary and not limiting.
[0018] Fig. Figures 1 to 6 show a schematic representation of the structure of an intelligent lock 100 with a key-replaceable electronic unit 120 according to an embodiment of the present invention. As in Fig. As shown in 1 to 6, the smart lock 100 can include the following: a case 110; an electronic unit 120, which is detachably attached to the housing 110; a locking unit 130 provided inside the housing 110, wherein the locking unit 130 enables the locking of the electronic unit 120 to the housing 110; and a key adapted to the locking unit 130, wherein the locking unit 130 is controlled by the key.
[0019] In this embodiment, when the electronic unit 120 needs to be removed, the key is inserted into the keyhole on the housing 110 and turned counterclockwise to rotate the locking unit 130, thus releasing part of the locking unit 130 from the electronic unit 120. Once the locking unit 130 is released from the electronic unit 120, the housing 110 lifts the electronic unit 120, making the electronic unit 120 replaceable. The locking unit 130 is controlled by the key. During assembly of the electronic unit 120, the end of the electronic unit 120 facing away from the locking unit 130 is inserted into the housing 110. After turning the key clockwise, the end of the electronic unit 120 facing the locking unit 130 is pressed into the housing 110 before the key is turned counterclockwise. becomes,which relocks the locking unit 130 with the electronic unit 120;
[0020] The locking unit 130 is key-operated, facilitating quick installation and removal of the electronic unit 120, maintenance of the electronic unit 120, battery replacement, and other operations. Furthermore, password and fingerprint locks can be switched to meet different user needs, reducing labor and resource waste associated with purchasing new door locks. The key-operated locking unit allows for quick installation and removal of the electronic unit, simplifying maintenance, battery replacement, and other operations.
[0021] Furthermore, the electronic unit 120 is a commercially available intelligent unlocking module for an electronic lock, and the electronic unit 120 is connected to the unlocking circuit of the electronic lock via a plug, which facilitates the exchange of different electronic units 120 (e.g., password unlocking, fingerprint unlocking, etc.). As in Fig. 1 and Fig. Figure 2 shows that in one embodiment openings are provided in the housing 110 which are adapted to the shape of the electronic unit 120, wherein when the electronic unit 120 is attached to the housing 110, the electronic unit 120 is embedded in the housing 110 through the openings, and wherein the surface of the electronic unit 120 is flush with the surface of the housing 110.
[0022] In this embodiment, the electronic unit 120 is embedded in the opening of the housing 110, ensuring that the surface of the electronic unit 120 is flush with or higher than the surface of the housing 110 to facilitate password entry or fingerprint verification for the user.
[0023] As in Fig. 5 and Fig. As shown in Figure 6, in one embodiment the electronic unit 120 comprises the following: a housing body 121 which is detachably arranged inside the housing 110, wherein the housing body 121 has two first detent grooves 122, and wherein a part of the locking unit 130 is engaged in the first detent groove 122; a retaining block 123, which is provided at an end of the housing body 121 that is remote from the first locking groove 122.
[0024] In this embodiment, the interior of the housing body 121 comprises the electronic module of a commercially available electronic lock, which is not repeated here; One end of the housing body 121 has two first detent grooves 122 to facilitate locking of the housing body 121 by the locking unit 130; during assembly, one end of the housing body 121, which has a retaining block 123, is inserted into the opening of the housing 110, so that the end of the housing body 121, which has the retaining block 123, is pre-positioned against the housing 110; after assembly, the key is inserted into the keyhole, the locking unit 130 is turned counterclockwise and secured; after completion of the rotation, the end of the housing body 121 with the first detent groove 122 is pressed into the housing 110 while the key is released, so that the part of the locking unit 130 is inserted into the first detent groove 122, thereby completing the locking of the housing body 121;
[0025] Furthermore, the housing body 121 can also be mounted without a key, and after the end of the housing body 121 with the retaining block 123 has been inserted into the opening of the housing 110, the end of the housing body 121 is clamped with the first detent groove 122 and the end of the housing body 121 with the first detent groove 122 is pressed into the housing 110 so that the locking unit 130 can be engaged in the first detent groove 122.
[0026] As in Fig. 2 and Fig. As shown in 6, in one embodiment the lock further comprises the following: a projection 111 which is provided inside the housing 110, wherein the projection 111 rests against the retaining block 123 when the housing body 121 is arranged inside the housing 110, and wherein the projection 111 is arranged above the retaining block 123; a first spring 112 which is provided inside the housing 110, wherein the first spring 112 rests against the housing body 121 when the housing body 121 is inside the housing 110.
[0027] In this embodiment, during the assembly of the housing 110, the retaining block 123 is pressed into the underside of the projection 111, and then the end of the housing body 121 is pressed into the housing 110 with the first detent groove 122;
[0028] When the housing body 121 is pressed into the housing 110, the first spring 112 adapts to the housing body 121 as it contracts, and when the part of the inserted locking unit 130 for the key control is released from the first detent groove 122, the first spring 112 relaxes to release the end of the housing body 121, which has the first detent groove 122, from the housing 110, thus facilitating the installation and removal of the housing body 121.
[0029] As in Fig. As shown in Figures 2 to 4, in one embodiment the locking unit 130 comprises the following: a rotary block 131 which is arranged inside the housing 110; a lock cylinder 132 which is arranged inside the housing 110, wherein the rotary block 131 is arranged on the lock cylinder 132, wherein the lock cylinder 132 has a keyhole, that is suitable for holding the key; a motion block 133 which is arranged inside the housing 110, wherein the motion block 133 is suitable for receiving the rotary block 131, wherein the motion block 133 moves horizontally when the rotary block 131 is rotated; a second spring 134, which is arranged between the movement block 133 and the housing 110; and a detent block 135, which is arranged on the movement block 133, wherein the detent block 135 engages in the first detent 122.
[0030] In this embodiment, the key is inserted through the keyhole into the lock cylinder 132, and the lock cylinder 132 is turned by the key, which in turn sets the movement block 133 in motion; the detent block 135 is fixed to the movement block 133, the number of detent blocks 135 corresponding to the number of first detent grooves 122, and the detent block 135 moves horizontally with the movement block 133; when the key-operated lock cylinder 132 is turned counterclockwise, the second spring 134 contracts, which in turn releases the detent block 135 from the first detent groove 122 and thus facilitates the removal of the housing body 121;When the key is released, the second spring 134 is stretched to reset the motion block 133, which in turn causes the lock cylinder 132 to rotate the rotary block 131 to drive the lock cylinder 132 to reset; and by adjusting the motion block 133 and the second spring 134, the key can be used to control the movement of the motion block 133 by the lock cylinder 132, which in turn controls the locking and unlocking between the detent block 135 and the first detent groove 122, thus achieving the locking and disassembly of the housing body 121; when the housing body 121 is pressed into the housing 110, the detent block 135 moves with the first detent groove 122, which in turn sets the motion block 133 in motion so that the detent block 135 engages in the first detent groove 122;The second spring 134 contracts while the detent block 135 snaps into the first detent groove 122, and the second spring 134 is diastolic when the detent block 135 snaps into the first detent groove 122, so that the detent block 135 is pulled upwards in the first detent groove 122 to achieve a locking of the housing body 121. As in ; Fig. 2 and Fig. As shown in Figure 5, in one embodiment the locking block 135 has a triangular cross-section, wherein the first locking groove 122 has an inverted “L” cross-section, and wherein the first locking groove 122 has a chamfered edge adapted to the chamfered edge of the locking block 135.
[0031] In this embodiment, the first detent groove 122 has an inverted L-shaped structure, and when the housing 110 is pressed into the housing body 121, the detent block 135 moves along the vertical groove of the first detent groove 122, with the second spring 134 contracting; when the detent block 135 enters the transverse groove of the first detent groove 122, the second spring 134 is extended to tension the detent block 135 against the transverse groove of the first detent groove 122, thereby locking the housing body 121 in the housing 110; Furthermore, the first detent groove 122 and the detent block 135 have mutually matched chamfered edges on the detent block 135, and when the detent block 135 enters the vertical groove, the chamfered edges of the detent block 135 fit the chamfered edges on the first detent groove 122, so that the movement block 133 can be moved towards the second spring 134 when the detent block 135 is moved from the vertical groove into the lateral groove, thereby allowing the second spring 134 to expand when the detent block 135 enters the transverse groove, so that the detent block 135 can be secured in the transverse groove of the first detent groove 122; When the key is inserted into the lock cylinder 132, the rotary block 131 controls the horizontal movement of the motion block 133, so that the detent block 135 is reinserted through the horizontal groove of the first detent groove 122 into the vertical groove, with the first spring 112 pushing up the end of the housing body 121 with the first detent groove 122.
[0032] As in Fig. As shown in Figures 2 to 5, in one embodiment the motion block 133 has a step-shaped notch, wherein the rotation block 131 has a projection 139 which is adapted to the step-shaped notch.
[0033] In this embodiment, the pivot block 131 has a circular cross-section, the projection 139 has a semicircular cross-section, the cross-section of the projection 139 has the same radius as the cross-section of the pivot block 131, and in an initial state, the plane of the projection 139 rests against the motion block 133; when the key controls the rotation of the lock cylinder 132, the flat surface of the projection 139 rotates and the projection 139 rests against the stepped notch of the motion block 133; when the projection 139 rotates, it pushes the motion block 133 into motion, which in turn displaces the detent block 135 from the transverse groove of the first detent groove 122 and causes the second spring 134 to contract.
[0034] As in Fig. Figures 2 to 4 show that in one embodiment a spring mounting part is provided on the movement block 133, wherein the second spring 134 is attached to the spring mounting part.
[0035] In this embodiment, the spring mounting part facilitates the installation of the second spring 134 between the housing 110 and the movement block 133 and provides some guidance and fixation of the second spring 134.
[0036] In one embodiment, the locking unit 130 further comprises the following: a limiting slide 136 which is arranged below the movement block 133, wherein the limiting slide 136 has a limiting groove and rests against the projection 139; a limiting block 137 which is provided inside the housing 110, wherein the limiting block 137 is arranged in the limiting groove; a third spring 138, which is arranged between the limiting slide 136 and the housing 110; When, in this embodiment, the key-controlled rotary block 131 is turned counterclockwise, the motion block 133 causes the second spring 134 to contract and the third spring 138 to diastole, thereby moving the limiting slide 136 in the opposite direction to the motion block 133; conversely, when the second spring 134 is diastole, it pushes the motion block 133 into motion, causing the rotary block 131 to rotate clockwise; at this moment, the limiting slide 136 moves in the opposite direction to the motion block 133, and the third spring 138 contracts to ensure the stability of the rotary block 131 during rotation; Furthermore, the interior of the lock cylinder 132 also has a spring unit to ensure that the rotary block 131 can be reset in time if the rotational force exerted on the key is interrupted; Furthermore, the strength coefficient of the second spring 134 is greater than the strength coefficient of the third spring 138, which ensures that the third spring 138 does not rotate the pivot block 131 and thereby move the motion block 133.
[0037] As in Fig. 1 and Fig. As shown in 2, in one embodiment the lock further comprises the following: a protective cover 124 provided on the housing 110, wherein the housing 110 includes a through-hole adapted to the keyhole, and the protective cover 124 is arranged on this through-hole.
[0038] In this version, the keyhole is protected by a protective cover to prevent the accumulation of dust in the keyhole, which would impair its later use.
[0039] The function of each module in each device of the embodiments of the present invention can be found in the corresponding descriptions in the method described above and is not repeated here.
[0040] In this description, reference to the terms "one embodiment," "some embodiments," "example," "specific example," etc., means that the specific features, structures, materials, or properties described in connection with the embodiment or example are included in at least one embodiment or example of the invention. Furthermore, the described specific features, structures, materials, or properties can be combined appropriately in one or more embodiments or examples. Moreover, a person skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this description without contradicting each other.
[0041] Furthermore, the terms “first” and “second” are used for descriptive purposes only and are not to be understood as indicating a relative significance or implicitly specifying the number of technical features mentioned. Consequently, a feature defined as “first” or “second” may expressly or implicitly include one or more such features. In the description of the invention, “several” means two or more unless expressly and specifically stated otherwise.
[0042] The foregoing descriptions represent only one specific embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto, and any person skilled in the art familiar with the technical field can imagine, without further modifications or substitutions, applications within the scope of the technology disclosed in the present invention that are covered by the scope of protection of the present invention. The scope of protection of the present invention is therefore determined by the scope of protection of the claims.
Claims
[1] Smart lock with a key-replaceable electronic unit, characterized by , that it includes the following: a case; an electronic unit that is detachably attached to the housing; a locking unit provided inside the housing, wherein the locking unit enables the locking of the electronic unit to the housing; and a key adapted to the locking unit, the locking unit being controlled by the key. [2] Intelligent lock with a key-replaceable electronic unit according to claim 1, characterized bythat openings are provided in the housing which are adapted to the shape of the electronic unit, wherein when the electronic unit is attached to the housing, the electronic unit is embedded in the housing through the openings, and wherein the surface of the electronic unit is flush with the surface of the housing. [3] Intelligent lock with a key-replaceable electronic unit according to claim 2, characterized by , that the electronic unit includes the following: a housing body which is detachably arranged within the housing, wherein the housing has two first detent slots, and wherein part of the locking unit is engaged in the first detent slot; a retaining block that is provided at an end of the housing body furthest from the first locking groove. [4] Intelligent lock with a key-replaceable electronic unit according to claim 3, characterized by, that a projection is provided inside the housing, wherein the projection rests against the retaining block when the housing body is arranged inside the housing, and wherein the projection is arranged above the retaining block; and a first spring is provided inside the housing, wherein the first spring rests against the housing body when the housing body is inside the housing. [5] Intelligent lock with a key-replaceable electronic unit according to claim 3, characterized by , that the locking unit includes the following: a rotating block that is located inside the housing; a lock cylinder arranged inside the housing, wherein the rotating block is arranged on the lock cylinder, wherein the lock cylinder has a keyhole suitable for receiving the key; a motion block arranged inside the housing, wherein the motion block is suitable for receiving the rotary block, the motion block moving horizontally when the rotary block is rotated; a second spring, positioned between the movement block and the housing; and a latching block that is arranged on the movement block, with the latching block engaging in the first latching function. [6] Intelligent lock with a key-replaceable electronic unit according to claim 5, characterized by that the detent block has a triangular cross-section, wherein the first detent groove has an inverted ‘L’ cross-section, and wherein the first detent groove has a chamfered edge adapted to the chamfered edge of the detent block. [7] Intelligent lock with a key-replaceable electronic unit according to claim 5, characterized by, that the motion block has a stepped notch, wherein the rotation block has a projection adapted to the stepped notch. [8] Intelligent lock with a key-replaceable electronic unit according to claim 5, characterized by that a spring mounting part is provided on the movement block, wherein the second spring is attached to the spring mounting part. [9] Intelligent lock with a key-replaceable electronic unit according to claim 7, characterized by , that the locking unit further comprises the following: a limiting slide arranged below the movement block, wherein the limiting slide has a limiting groove and rests against the projection; a limiting block provided within the housing, wherein the limiting block is arranged in the limiting groove; a third spring, which is positioned between the slider and the housing. [10] Intelligent lock with a key-replaceable electronic unit according to claim 5, characterized by , that a protective cover is provided on the housing, wherein the housing includes a through-hole adapted to the keyhole, and the protective cover is arranged on this through-hole.