Split motor lock cylinder

Abstract

The application discloses a split motor lock cylinder, which comprises a motor, a reduction gearbox connected with the motor, and a lock cylinder rotor, further comprises a main body in a U-shaped type formed by folding a middle part, and a main body sleeve for sleeving on the main body, the middle part of the folded main body is provided with a lock cylinder hole for installing a key lock cylinder, the bottom of the main body is provided with an extended insertion section, the main body sleeve is integrally arranged in a U-shaped type, an insertion slot for inserting the main body is formed in the middle of the main body sleeve, a positioning hole for cooperating with the extended insertion section is formed in the bottom of the main body sleeve and communicated with the insertion slot, an extension part is detachably fixed to one side of the main body close to the reduction gearbox, the top of the extension part is fixed to the side wall of the reduction gearbox, and the lock cylinder rotor is rotatably arranged between the reduction gearbox and the lock cylinder hole. By adopting the split motor lock cylinder, the machining limitation of the original integrated main body is broken, the machining difficulty is obviously reduced, and when subsequent maintenance is performed, the main body or the main body sleeve which is aged and damaged can be replaced point by point, the lock cylinder does not need to be replaced as a whole, the maintenance cost is reduced, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of smart lock technology, and in particular to a split-type motor lock cylinder. Background Technology

[0002] In the core drive structure of a smart lock, the motor lock cylinder is a key component for achieving automatic unlocking. Chinese Utility Model Patent No. 202620005456.5 describes a motor lock cylinder, which includes a motor, a gearbox connected to the motor, and a lock cylinder rotor. The key feature is that it also includes a U-shaped main body and a lock cylinder sleeve for installing a key lock cylinder, which is installed on the side of the main body away from the gearbox. An extension is detachably fixed on the side of the main body near the gearbox, and the top of the extension is fixed to the side wall of the gearbox. The lock cylinder rotor is rotatably disposed between the gearbox and the lock cylinder sleeve. By using a U-shaped main body and a side wall horizontal fixing structure, the motor, gearbox, and lock cylinder rotor are arranged in a compact horizontal layout, completely breaking the traditional axial series mode. The axial length is shortened compared to existing technologies. The extension part can be detachably fixed to the side of the main body near the gearbox, and the top is directly fixed to the side wall of the gearbox. The lock cylinder rotor is rotatably set between the gearbox and the lock cylinder sleeve. The compact horizontal layout of each core component effectively shortens the overall axial length, adapting to the installation space limitations of miniaturized and thin smart locks, and breaking through the bottleneck of traditional structures being unable to adapt to small locks due to excessive length.

[0003] However, the motor lock cylinder of the above structure has a high degree of integration, which makes it more difficult to process and increases production costs. Moreover, the subsequent maintenance costs are also high, and it cannot be replaced and repaired point-to-point according to the aged and damaged parts. Therefore, improvements are needed. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art.

[0005] This application provides a split-type motor lock cylinder, including a motor, a gearbox connected to the motor, and a lock cylinder rotor. The key feature is that it further includes a U-shaped main body folded in half along its center and a main body sleeve for fitting onto the main body. The folded center of the main body forms a lock cylinder hole for installing a key lock cylinder. An extended insertion section is provided at the bottom of the main body. The main body sleeve is generally U-shaped with an insertion groove in the middle for inserting the main body. A positioning hole communicating with the insertion groove and cooperating with the extended insertion section is provided at the bottom of the main body sleeve. When the main body sleeve is installed with the main body, the main body is inserted into the insertion groove, and the extended insertion section is inserted into the positioning hole. An extension is detachably fixed to the side of the main body near the gearbox, and the top of the extension is fixed to the side wall of the gearbox. The lock cylinder rotor is rotatably disposed between the gearbox and the lock cylinder hole of the main body.

[0006] Preferably, the extension has a mating slot for insertion into the left side of the main body, the insertion part on the left side of the main body has a first hole, and the side wall of the extension has a second hole. After the left side of the main body is inserted into the mating slot, it is fixed to the extension by a first bolt that engages with the second hole and the first hole.

[0007] Preferably, the main body is provided with a plurality of slots, and a plurality of locking blocks are correspondingly provided on the side walls of the insertion slot. When the main body is inserted into the insertion slot, the locking blocks are correspondingly locked into the slots.

[0008] Preferably, the top left side of the main body is lower than the top right side. After the main body is installed, the front and rear groove walls of the insertion slot cooperate with the top left side of the main body to form a receiving groove for accommodating the fixing post and the end of the fastening screw.

[0009] Preferably, the top of the two sides of the insertion groove is provided with an arc-shaped cross-section facing each other.

[0010] Preferably, the main body is provided with a through mounting hole, and the main body sleeve is provided with a corresponding through mounting hole.

[0011] Preferably, the main body is provided with bending positioning holes for multiple bending alignment and small protrusions for the main body to fit into the corresponding bending positioning holes after bending.

[0012] Preferably, a fixing ring is fixed to one side of the motor output end by screws, an extension section is connected to the bottom of the fixing ring, a fixing screw hole is provided on the extension section, a first fixing hole is correspondingly provided on the extension part, and the extension part and the extension section are fixed together by fastening screws cooperating with the first fixing hole and the fixing screw hole.

[0013] Preferably, a fixing post is provided along the length direction on the bottom side wall of the gearbox to prevent the fastening screws from being exposed and to strengthen the connection between the gearbox and the motor. The fixing post is fixedly connected to the left and right sides of the extension, and the fixing post is provided with a through hole communicating with the first fixing hole.

[0014] Preferably, the top of the fixing ring is connected to an upper reinforcing lug, and the end of the gearbox facing the motor is provided with reinforcing grooves at the top and bottom for the upper reinforcing lug and the extension section to be inserted.

[0015] The aforementioned split-type motor lock cylinder breaks through the processing limitations of the original integrated main body. The processing difficulty of the folded main body is significantly reduced, and the main body sleeve can be produced and assembled separately, reducing the overall manufacturing cost. During subsequent maintenance, only the aged or damaged main body or main body sleeve can be replaced point-to-point, eliminating the need to replace the entire lock cylinder, greatly reducing maintenance costs and improving practicality. The split design, with the main body folded into shape, eliminates the need for complex mold processing compared to the original integrated U-shaped main body, resulting in higher forming precision and a shorter processing cycle. The main body sleeve can be produced separately, requiring only the corresponding component to be replaced when damaged, further reducing maintenance costs and solving the pain point of replacing the entire lock when damaged in the original integrated main body.

[0016] The beneficial effects of this invention will be explained in detail in the embodiments, thereby making the beneficial effects more obvious. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the specific structure of an embodiment of this application.

[0018] Figure 2 This is a first-person perspective three-dimensional schematic diagram of the specific structure of an embodiment of this application.

[0019] Figure 3 This is a second-view perspective three-dimensional schematic diagram of the specific structure of an embodiment of this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0023] Example 1: like Figures 1-3As shown, a split-type motor lock cylinder includes a motor 2, a reduction gearbox 5 connected to the motor 2, and a lock cylinder rotor 3. In a specific embodiment of this utility model, it also includes a U-shaped main body 4 formed by folding along the middle and a main body sleeve 401 for fitting onto the main body 4. The folded middle of the main body 4 forms a lock cylinder hole 402 for installing a key lock cylinder. The bottom of the main body 4 is provided with an extended insertion section 403. The main body sleeve 401 is generally U-shaped, with an insertion groove 404 in the middle for inserting the main body 4. The bottom of the main body sleeve 401 is provided with a positioning hole 405 that communicates with the insertion groove 404 and is used to cooperate with the extension insertion section 403. When the main body sleeve 401 is installed with the main body 4, the main body 4 is inserted into the insertion groove 404 and the extension insertion section 403 is inserted into the positioning hole 405. The side of the main body 4 near the gearbox 5 is detachably fixed with an extension part 10. The top of the extension part 10 is fixed on the side wall of the gearbox 5. The lock cylinder rotor 3 is rotatably disposed between the gearbox 5 and the lock cylinder hole 402 of the main body 4.

[0024] The aforementioned split-type motor lock cylinder has the following core structure: the main body 4 and the main body sleeve 401 are set separately. The main body 4 is folded in half along the middle to form the core, and the main body sleeve 401 is fitted onto the outside of the main body 4. This breaks through the processing limitations of the original integrated main body, significantly reducing the processing difficulty of the folded main body 4. The main body sleeve 401 can be produced and assembled separately, reducing the overall manufacturing cost. In subsequent maintenance, the aged and damaged main body 4 or main body sleeve 401 can be replaced point by point without replacing the entire lock cylinder, greatly reducing maintenance costs and improving practicality.

[0025] In a specific embodiment of this utility model, the main body 4 is provided with a plurality of slots 414, and a plurality of locking blocks 415 are correspondingly provided on the side walls of the insertion groove 404. When the main body 4 is inserted into the insertion groove 404, the locking blocks 415 are correspondingly engaged with the slots 414. For example... Figure 2 As shown, there are two bayonet slots 414, one on the left and one on the right, located on the right side of the main body 4 and below the lock cylinder hole 402; there are four locking blocks 415, which are distributed on the top of the groove walls on both sides of the insertion groove 404. The four locking blocks 415 are respectively locked into the front and rear sides of the two bayonet slots 414 to achieve bidirectional limiting.

[0026] The engagement of the locking block 415 and the locking slot 414 further restricts the relative displacement between the main body 4 and the main body sleeve 401. Combined with the longitudinal positioning of the extended insertion section 403 and the positioning hole 405, it achieves dual fixation in both the lateral and longitudinal directions.

[0027] In a specific embodiment of this utility model, the extension portion 10 is provided with a mating slot 406 for the left side of the main body 4 to be inserted, the left side of the main body 4 is provided with a first hole 407, and the side wall of the extension portion 10 is provided with a second hole 408. After the left side of the main body 4 is inserted into the mating slot 406, it is fixed to the extension portion 10 by a first bolt 409 in conjunction with the second hole 408 and the first hole 407.

[0028] Core structure: The extended insertion section 403 mates with the positioning hole 405, the bayonet 414 engages with the locking block 415, and the mating slot 406 is fixed with the first bolt 409. When the main body 4 is inserted into the main body sleeve 401, the extended insertion section 403 inserts into the positioning hole 405 to achieve longitudinal positioning, and the locking block 415 engages with the bayonet 414 to achieve lateral limiting. This dual positioning ensures accurate installation without deviation. The main body 4 and the extension part 10 are fastened by inserting into the mating slot 406 and bolts, which improves the connection strength compared to the original structure, enhances the ability to resist door vibration, and avoids transmission deviation caused by loose parts.

[0029] Example 2: like Figures 1-3 As shown, the difference from Embodiment 1 is that, in addition to including the structural features of the aforementioned embodiments, in this specific embodiment of the utility model, the horizontal height of the top left side of the main body 4 is lower than the horizontal height of the top right side. After the main body sleeve 401 is installed on the main body 4, the front and rear groove walls of the insertion groove 404 cooperate with the top left side of the main body 4 to form a receiving groove 17 for accommodating the part of the fixing post 14 and the end of the fastening screw 16.

[0030] Core structure: The top left side of the main body 4 is lower than the top right side, forming a receiving groove 17 with the main body sleeve 401; the U-shaped main body + side wall horizontal fixing structure continues. The receiving groove 17 naturally accommodates the ends of the fixing post 14 and fastening screw 16, without the need for additional reserved space, further improving space utilization; continuing the horizontally compact layout, the axial length maintains the short size advantage of existing technology, while the split structure does not increase the radial space occupied, perfectly adapting to the installation requirements of miniaturized and thin smart locks.

[0031] In a specific embodiment of this utility model, the top of the two sides of the insertion groove 404 is provided with an arc-shaped cross-section 413 facing each other.

[0032] In a specific embodiment of this utility model, the main body 4 is provided with a through mounting hole 50, and the main body sleeve 401 is provided with a through mounting hole 410.

[0033] In a specific embodiment of this utility model, the main body 4 is provided with several bending positioning holes 411 for bending alignment and small protrusions 412 for the main body 4 to engage with the corresponding bending positioning holes 411 after bending. Figure 2As shown, there are two bending positioning holes 411, which are located on the right side of the main body 4 and have different heights. There are also two small protrusions 412.

[0034] Core structure: The bending positioning hole 411 mates with the small protrusion 412, the arc-shaped cut surfaces 413 on both sides of the insertion groove 404, and the mounting hole 50 corresponds to the sleeve mounting hole 410. When the main body 4 is bent, the small protrusion 412 engages with the bending positioning hole 411, ensuring precise alignment during folding and improving processing accuracy; the arc-shaped cut surfaces 413 avoid sharp edge interference during assembly, facilitating the quick insertion of the main body 4 into the main body sleeve 401; the precise correspondence between the mounting hole and the sleeve mounting hole simplifies the overall assembly process of the lock cylinder and smart lock, improving production efficiency. The formation of the receiving groove 17 retains the original function of storing and fixing components, while achieving space reuse through a split-type fit, eliminating the need to increase the volume of the main body 4, ensuring that the axial length is consistent with the original technology, and still adapting to the installation requirements of miniaturized and thin smart locks.

[0035] Example 3: like Figures 1-3 As shown, the difference from Embodiment 2 is that, in addition to including the structural features of the aforementioned embodiments, in this specific embodiment of the present invention, one side of the output end of the motor 2 is fixed with a fixing ring 1 by screws, the bottom of the fixing ring 1 is connected to an extension section 11, the extension section 11 is provided with a fixing screw hole 15, the extension part 10 is correspondingly provided with a first fixing hole, and the extension part 10 and the extension section 11 are fixed together by fastening screws 16 in cooperation with the first fixing hole and the fixing screw hole 15.

[0036] In a specific embodiment of this utility model, a fixing post 14 is provided along the length direction on the bottom side wall of the gearbox 5 to prevent the fastening screw 16 from being exposed and to strengthen the connection between the gearbox 5 and the motor 2. The fixing post 14 is fixedly connected to the left and right sides of the extension 10, and a through hole 18 communicating with the first fixing hole is provided on the fixing post 14.

[0037] In a specific embodiment of this utility model, the top of the fixing ring 1 is connected to an upper reinforcing ear 21, and the gearbox 5 has reinforcing grooves 22 at the top and bottom of the end facing the motor 2 for the upper reinforcing ear 21 and the extension section 11 to be inserted.

[0038] Core Structure: The connecting structures, including the fixed ring 1, upper reinforcing lug 21, and fixed column 14, remain unchanged; the connection mode between the lock cylinder rotor 3 and the reduction gearbox 5 remains the same. The multiple connection structure of bolt fixing and bayonet limiting ensures the coaxiality of the transmission between the motor 2 and the reduction gearbox 5, preventing the output shaft from spinning freely. The rotational stability of the lock cylinder rotor 3 is not affected by the split structure, resulting in low transmission friction loss and a service life basically the same as the original technology. The continuation of the fixed ring 1 and upper reinforcing lug 21 structures ensures the coaxiality of the transmission between the motor 2 and the reduction gearbox 5 even in a split design, forming a double guarantee with the positioning and matching of the split structure, avoiding a decrease in connection stability due to the split design.

[0039] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0040] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A split-type motor lock cylinder, comprising a motor (2), a reduction gearbox (5) connected to the motor (2), and a lock cylinder rotor (3), characterized in that, It also includes a U-shaped main body (4) formed by folding it in half along the middle and a main body sleeve (401) for fitting onto the main body (4). The folded middle of the main body (4) forms a lock cylinder hole (402) for installing a key lock cylinder. An extension insertion section (403) is provided at the bottom of the main body (4). The main body sleeve (401) is generally U-shaped with an insertion groove (404) in the middle for inserting the main body (4). The bottom of the main body sleeve (401) has a section that communicates with the insertion groove (404) for connecting with the extension insertion section. The positioning hole (405) of the segment (403) is matched. When the main body sleeve (401) is installed with the main body (4), the main body (4) is inserted into the insertion groove (404), and the extended insertion segment (403) is inserted into the positioning hole (405). The main body (4) has an extension part (10) detachably fixed on the side of the gearbox (5). The top of the extension part (10) is fixed on the side wall of the gearbox (5). The lock core rotor (3) is rotatably arranged between the lock core hole (402) of the gearbox (5) and the main body (4).

2. A split-type motor lock cylinder according to claim 1, characterized in that, The extension (10) is provided with a mating slot (406) for the left side of the main body (4) to be inserted. The left side of the main body (4) is provided with a first hole (407). The side wall of the extension (10) is provided with a second hole (408). After the left side of the main body (4) is inserted into the mating slot (406), the extension (10) is fixed to the extension by the first bolt (409) in conjunction with the second hole (408) and the first hole (407).

3. A split-type motor lock cylinder according to claim 1, characterized in that, The main body (4) is provided with several slots (414), and several locking blocks (415) are provided on the two sides of the insertion slot (404). When the main body (4) is inserted into the insertion slot (404), the locking blocks (415) are locked into the slots (414).

4. A split-type motor lock cylinder according to claim 1, 2, or 3, characterized in that, The top left side of the main body (4) is lower than the top right side. After the main body sleeve (401) is installed on the main body (4), the front and rear groove walls of the insertion groove (404) cooperate with the top left side of the main body (4) to form a receiving groove (17) for accommodating the end of the fixing column (14) and the fastening screw (16).

5. A split-type motor lock cylinder according to claim 1, 2, or 3, characterized in that, The top of the two sides of the insertion groove (404) is set as an arc-shaped cut surface (413) with the left and right sides opposite.

6. A split-type motor lock cylinder according to claim 1, 2, or 3, characterized in that, The main body (4) is provided with a through mounting hole (50) that runs from front to back, and the main body sleeve (401) is provided with a corresponding through mounting hole (410) that runs from front to back.

7. A split-type motor lock cylinder according to claim 1, 2, or 3, characterized in that, The main body (4) is provided with bending positioning holes (411) for several bending alignment and small protrusions (412) for the main body (4) to be engaged and inserted into the corresponding bending positioning holes (411) after bending.

8. A split-type motor lock cylinder according to claim 1, characterized in that, One side of the output end of the motor (2) is fixed with a fixing ring (1) by screws. The bottom of the fixing ring (1) is connected to an extension section (11). The extension section (11) is provided with a fixing screw hole (15). The extension part (10) is provided with a first fixing hole. The extension part (10) and the extension section (11) are fixed together by fastening screws (16) in conjunction with the first fixing hole and the fixing screw hole (15).

9. A split-type motor lock cylinder according to claim 8, characterized in that, The gearbox (5) has a fixing post (14) along its length on the bottom side wall to prevent the fastening screw (16) from being exposed and to strengthen the connection between the gearbox (5) and the motor (2). The fixing post (14) is fixedly connected to the left and right sides of the extension (10), and the fixing post (14) has a through hole (18) that communicates with the first fixing hole.

10. A split-type motor lock cylinder according to claim 8, characterized in that, The top of the fixed ring (1) is connected to an upper reinforcing ear (21), and the gearbox (5) facing the motor (2) has reinforcing grooves (22) on the top and bottom respectively for the upper reinforcing ear (21) and the extension section (11) to be inserted.

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