Intelligent lock sealing plate fixing structure for fixing clutch
By combining the connecting column and positioning bolt of the fixed component, the problems of inconvenient installation and unstable fixation of the smart lock clutch are solved, achieving high-precision positioning and stable connection, and improving the operation efficiency and security of the lock.
Patent Information
- Application Number
- CN202522262817.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-10-27
AI Technical Summary
The existing smart locks use a single method to fix the clutch, which makes installation inconvenient, positioning accuracy low, and prone to loosening after long-term use. Screw connections may also damage the structural strength of the clutch.
The system employs a combination structure of fixed components, including a fixed base, a connecting column, and positioning bolts. The connecting column is adapted to the clutch fixing hole, and the positioning bolts are used to lock and achieve precise multi-point positioning and axial and radial constraints. Combined with a guide block, the alignment process is simplified.
It improves the ease of installation and the reliability of fixing the clutch, reduces assembly errors and the risk of loosening after long-term use, and enhances the safety performance of the lock.
Smart Images

Figure CN223647559U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smart lock technology, specifically to a smart lock sealing plate fixing structure for fixing a clutch. Background Technology
[0002] The clutch is the core component controlling unlocking in a smart lock. It is usually fixed by cooperating with the lock housing, and its fixing reliability directly affects the security and service life of the lock. In the existing technology, the lock housing is mostly fixed to the clutch by screw connection. For example, the clutch fixing block is locked to the sealing plate by applying glue screws, or the anti-torsion screws are used to connect and fix it through the screw holes of the sealing plate and the screw holes of the lock housing. However, since the clutch needs to be set in a corresponding position with other components during installation, the traditional clutch set on the lock housing is inconvenient to install. The existing clutch fixing method is simple, with low positioning accuracy, and after long-term use, the single screw connection is prone to loosening. Moreover, when tightening the screw, the screw surface can easily squeeze the clutch surface, damaging the structural strength of the clutch. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a smart lock sealing plate fixing structure for fixing the clutch, so as to solve the problems mentioned in the background art, such as inconvenience in fixing the special clutch for smart locks, poor stability, inconvenient installation, and easy compression of the clutch by the screw surface.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an intelligent locking plate fixing structure for fixing a clutch, comprising a sealing plate and a fixing assembly for fixing the clutch. The fixing assembly is connected to the side wall of the sealing plate facing the handle. The fixing assembly includes at least one set of fixing seats and positioning bolts. The fixing seats are arranged corresponding to the clutch position. Each fixing hole on the fixing seat is provided with a screw hole for setting the bolt. A connecting post is provided on the end face of the fixing seat facing the clutch corresponding to each screw hole position. The connecting post passes through the fixing hole on the clutch and connects to the positioning bolt. The positioning bolt, connecting post, and fixing seat cooperate to position the clutch.
[0005] As a further improvement of this utility model, the radial width of the connecting post is adapted to the radial width of the fixing hole on the clutch, and the connecting post can abut against the inner wall of the fixing hole after passing through the fixing hole on the clutch.
[0006] As a further improvement of this utility model, the length of the connecting column is adapted to the length of the fixing hole of the clutch, the end face of the connecting column is flush with the end face of the fixing hole of the clutch facing the handle, the positioning bolt passes through the connecting column and is threadedly connected to the screw hole, and the positioning bolt abuts against the end face of the connecting column facing the positioning bolt.
[0007] As a further improvement of this utility model, the length of the connecting column is adapted to the length of the fixing hole of the clutch, the end face of the connecting column is flush with the end face of the fixing hole of the clutch facing the handle, the positioning bolt passes through the connecting column and is threadedly connected to the screw hole, and the positioning bolt abuts against the end face of the connecting column facing the positioning bolt.
[0008] As a further improvement of this utility model, there are four connecting posts, and the four connecting posts are respectively set at the positions of the four fixing holes on the clutch.
[0009] As a further improvement of this utility model, a guide block is provided on the fixed seat at the notch position corresponding to the clutch, and the guide block can be used to guide the clutch to be placed on the fixed seat.
[0010] As a further improvement of this utility model, the guide block has guide walls on both sides, and the guide walls are arc-shaped from the upper end face of the guide block to the lower end face. The guide walls can contact the notch on the clutch to guide the fixing hole of the clutch to the corresponding position of the screw hole on the fixing seat. Compared with the prior art, this utility model provides an intelligent locking plate fixing structure for fixing the clutch, which has the following advantages: the connecting column of the fixing seat can be pre-entered into the fixing hole of the clutch to achieve quick pre-positioning, eliminating the screw hole alignment step during traditional screw assembly, making disassembly and assembly more convenient during installation and maintenance, and greatly improving operating efficiency; the connecting column and the fixing hole of the clutch are matched one by one, and with the corresponding setting of the fixing seat and the clutch, a multi-point precise positioning is formed, which effectively avoids relative offset caused by assembly errors, ensures the fitting accuracy of each component, and reduces problems such as the handle not turning smoothly; the positioning bolt, the connecting column and the fixing seat work together to limit the movement. After the connecting column passes through the fixing hole, it is locked by the bolt to form a stable axial and radial constraint, reducing the risk of loosening after long-term use, improving the fixing reliability of the clutch, and ensuring the safety performance of the lock. Attached Figure Description
[0011] Figure 1 This is a perspective view of the present utility model;
[0012] Figure 2 This is a front view of the sealing plate of this utility model without the clutch installed;
[0013] Figure 3This is a partial sectional view of the installed sealing plate of this utility model. Reference numerals: 1. Sealing plate; 2. Clutch; 3. Fixing assembly; 31. Fixing base; 32. Positioning bolt; 311. Screw hole; 312. Connecting column; 313. Guide block; 314. Guide wall. Detailed Implementation
[0014] As shown in the figure, to achieve the above-mentioned objective, this utility model provides a smart lock plate 1 fixing structure for fixing a clutch 2, including a plate 1 and a fixing component 3 for fixing the clutch 2. The fixing component 3 is connected to the side wall of the plate 1 facing the handle. The fixing component 3 includes at least one set of fixing seats 31 and positioning bolts 32. The fixing seats 31 are set corresponding to the position of the clutch 2. Each fixing hole on the fixing seat 31 corresponding to the fixing hole on the clutch 2 is provided with a screw hole 311 for setting the bolt. The end face of the fixing seat 31 facing the clutch 2 is provided with a connecting post 312 corresponding to the position of each screw hole 311. The connecting post 312 passes through the fixing hole on the clutch 2 and is connected to the positioning bolt 32. The positioning bolt 32, the connecting post 312, and the fixing seat 31 cooperate to position the clutch 2.
[0015] In implementation, the fixing component 3 needs to be connected to the side wall of the sealing plate 1 facing the handle. The fixing component 3 includes a fixing seat 31 and several positioning bolts 32. The installation position of the fixing seat 31 must correspond to the preset installation area of the clutch 2 inside the smart lock. According to the number of fixing holes on the clutch 2, screw holes 311 are machined one by one on the fixing seat 31. On the end face of the fixing seat 31 facing the clutch 2, a connecting post 312 is integrally formed in front of each screw hole 311. During assembly, the clutch 2 is placed against the end face of the fixing seat 31, so that each connecting post 312 passes through the fixing hole of the clutch 2 until the end face of the connecting post 312 is flush with the end face of the fixing hole. Then, the positioning bolts 32 are aligned with the connecting post 312, inserted and screwed into the screw hole 311. After that, the positioning bolts 32 can abut against the end face of the connecting post 312 and axially limit the clutch 2. The precise positioning and fixation of the clutch 2 are achieved through the axial locking force of the positioning bolt 32, the radial limiting force of the connecting column 312, and the supporting force of the fixing seat 31.
[0016] As an improved embodiment, the radial width of the connecting post 312 is adapted to the radial width of the fixing hole on the clutch 2, and the connecting post 312 can abut against the inner wall of the fixing hole after passing through the fixing hole on the clutch 2.
[0017] In implementing this solution, the radial width of the connecting post 312 must match the radial width of the fixing hole of the clutch 2. Two implementation methods are adopted: Implementation Method 1: The connecting post 312 and the fixing hole use a transition fit. The diameter of the connecting post 312 is slightly larger than the diameter of the fixing hole by 0.01-0.03 mm. During assembly, the connecting post 312 is pressed into the fixing hole with slight pressure. After insertion, the outer wall of the connecting post 312 and the inner wall of the fixing hole are tightly abutted without significant gaps, directly restricting the radial displacement of the clutch 2. Implementation Method 2: The connecting post 312 and the fixing hole use a clearance fit. The diameter of the connecting post 312 is slightly smaller than the diameter of the fixing hole by 0.02-0.04 mm. After insertion, the connecting post 312 limits the movement of the fixing hole.
[0018] As an improved specific implementation, the length of the connecting post 312 is adapted to the length of the fixing hole of the clutch 2, the end face of the connecting post 312 is flush with the end face of the fixing hole of the clutch 2 facing the handle, the positioning bolt 32 passes through the connecting post 312 and is threadedly connected to the screw hole 311, and the positioning bolt 32 abuts against the end face of the connecting post 312 facing the positioning bolt 32.
[0019] In implementation, the length of the connecting post 312 must precisely match the axial length of the fixing hole of the clutch 2. During assembly, after the connecting post 312 passes through the fixing hole, its end face away from the fixing seat 31 is flush with the end face of the clutch 2 facing the handle, preventing the connecting post 312 from protruding and interfering with the installation of the handle assembly. An axial through hole is formed inside the connecting post 312, with a diameter slightly larger than the diameter of the screw of the positioning bolt 32, and coaxial with the screw hole 311 on the fixing seat 31. The screw of the positioning bolt 32 is passed through the through hole of the connecting post 312 from the outside of the clutch 2 until it is threaded into the screw hole 311 of the fixing seat 31. The positioning bolt 32 is continuously tightened until its head is tightly abutted against the end face of the connecting post 312. This structure achieves axial positioning through length adaptation, and with the tightening force of the bolt, ensures that the clutch 2 has no axial movement space.
[0020] As an improved specific implementation, the length of the connecting post 312 is adapted to the length of the fixing hole of the clutch 2, the end face of the connecting post 312 is flush with the end face of the fixing hole of the clutch 2 facing the handle, the positioning bolt 32 passes through the connecting post 312 and is threadedly connected to the screw hole 311, and the positioning bolt 32 abuts against the end face of the connecting post 312 facing the positioning bolt 32.
[0021] In this design, the connecting post 312 abuts against the inner wall of the fixing hole to achieve radial limiting. Simultaneously, the length of the connecting post 312 matches the length of the fixing hole, and after insertion, the end face of the connecting post 312 is flush with the end face of the clutch 2 facing the handle. During assembly, the positioning bolt 32 passes through the axial through hole of the connecting post 312 and engages with the screw hole 311 of the fixing seat 31, with the bolt head abutting against the end face of the connecting post 312. Radial adaptation limits the lateral displacement of the clutch 2, while length adaptation and bolt tightening limit its forward and backward movement. The combined effect of these two methods significantly improves the positioning accuracy of the clutch 2 compared to a single adaptation method, effectively avoiding relative displacement problems after assembly.
[0022] As an improved specific implementation, there are four connecting posts 312, and the four connecting posts 312 are respectively set at the positions of the four fixing holes on the clutch 2.
[0023] In this design, four connecting posts 312 are arranged in a rectangle on the end face of the fixed seat 31 facing the clutch 2, corresponding to the four fixing holes at the four corners of the clutch 2. The center of the rectangle coincides with the center of the clutch 2. During assembly, the four fixing holes of the clutch 2 are aligned with the four connecting posts 312, and the clutch 2 is pushed axially to insert the connecting posts 312 into place. At this point, the connecting posts 312 abut against the inner wall of the fixing holes due to radial adaptation, achieving four-point radial limiting. Then, four positioning bolts 32 are inserted into the connecting posts 312 and screwed into the screw holes 311. The bolt heads abut against the end face of the connecting posts 312, thus preventing the clutch 2 from disengaging from the end face of the connecting posts 312. The four-point positioning forms a stable rectangular support structure, which can also effectively prevent the clutch 2 from tilting during assembly, further improve the torsional resistance after fixing, and reduce the risk of loosening during long-term use.
[0024] As an improved embodiment, a guide block 313 is provided on the fixed seat 31 at the notch position corresponding to the clutch 2. The guide block 313 can be used to guide the clutch 2 to be placed on the fixed seat 31.
[0025] In this design, a protruding guide block 313 is integrally formed on the end face of the fixed seat 31 facing the clutch 2, at a position corresponding to a pre-set notch on the edge of the clutch 2. The shape of the guide block 313 matches the contour of the notch, and its length is slightly shorter than the depth of the notch. During assembly, there is no need for precise alignment of the connecting post 312 and the fixing hole. Simply align the notch of the clutch 2 with the guide block 313 on the fixed seat 31, and push the clutch 2 along the extension direction of the guide block 313. The guide block 313 is inserted into the notch, and through the sliding engagement between the inner wall of the notch and the outer wall of the guide block 313, the clutch 2 is guided to gradually approach the fixed seat 31 until the connecting post 312 automatically aligns and passes through the fixing hole of the clutch 2. This structure simplifies the alignment steps during assembly and is especially suitable for operation in the confined space inside a smart lock, improving assembly efficiency.
[0026] As an improved specific implementation, the guide block 313 has guide walls 314 on both sides. The guide walls 314 are arc-shaped from the upper end face of the guide block 313 to the lower end face. The guide walls 314 can contact the notch on the clutch 2 to guide the fixing hole of the clutch 2 to the corresponding position of the screw hole 311 on the fixing seat 31.
[0027] In this implementation, guide walls 314 are integrally formed on both sides of the guide block 313. The guide walls 314 smoothly curve inward from the upper end of the guide block 313 (away from the fixed seat 31) to the lower end (closer to the fixed seat 31), with the radius of curvature designed according to the sliding trajectory of the clutch 2 notch. During assembly, when the clutch 2 notch approaches the guide block 313, the two edges of the notch first contact the upper curved surface of the guide wall 314. Continuing to push the clutch 2, the edges of the notch slide along the curved guide wall 314. Under the guidance of the guide wall 314, the clutch 2 automatically adjusts its position, gradually aligning its fixing hole with the connecting post 312 on the fixed seat 31. This continues until the guide block 313 is fully inserted into the notch, and the connecting post 312 precisely penetrates the fixing hole, reducing alignment difficulty. The above is only a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments; all technical solutions within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.
Claims
1. A smart locking plate fixing structure for fixing a clutch, characterized in that, The device includes a sealing plate and a fixing assembly for fixing the clutch. The fixing assembly is connected to the side wall of the sealing plate facing the handle. The fixing assembly includes at least one set of fixing seats and positioning bolts. The fixing seats are set corresponding to the clutch position. Each fixing hole on the fixing seat is provided with a screw hole for setting the bolt. Each screw hole is provided on the end face of the fixing seat facing the clutch. The connecting post is provided corresponding to each screw hole position. The connecting post passes through the fixing hole on the clutch and is connected to the positioning bolt. The positioning bolt, connecting post and fixing seat cooperate to position the clutch.
2. The intelligent locking plate fixing structure for fixing a clutch according to claim 1, characterized in that, The radial width of the connecting post is adapted to the radial width of the fixing hole on the clutch, and the connecting post can abut against the inner wall of the fixing hole after passing through the fixing hole on the clutch.
3. The intelligent locking plate fixing structure for fixing a clutch according to claim 1, characterized in that, The length of the connecting post is adapted to the length of the fixing hole of the clutch. The end face of the connecting post is flush with the end face of the fixing hole of the clutch facing the handle. The positioning bolt passes through the connecting post and is threaded into the screw hole. The positioning bolt abuts against the end face of the connecting post facing the positioning bolt.
4. The intelligent locking plate fixing structure for fixing a clutch according to claim 1 or 2, characterized in that, The length of the connecting post is adapted to the length of the fixing hole of the clutch. The end face of the connecting post is flush with the end face of the fixing hole of the clutch facing the handle. The positioning bolt passes through the connecting post and is threaded into the screw hole. The positioning bolt abuts against the end face of the connecting post facing the positioning bolt.
5. The intelligent locking plate fixing structure for fixing a clutch according to claim 1, 2, or 3, characterized in that, There are four connecting posts, and the four connecting posts are respectively set at the positions of the four fixing holes on the clutch.
6. The intelligent locking plate fixing structure for fixing a clutch according to claim 1, characterized in that, A guide block is provided on the fixed seat at the notch position corresponding to the clutch, and the guide block can be used to guide the clutch to be placed on the fixed seat.
7. The intelligent locking plate fixing structure for fixing a clutch according to claim 6, characterized in that, The guide block has guide walls on both sides. The guide walls are arc-shaped from the upper end face of the guide block to the lower end face. The guide walls can contact the notch on the clutch to guide the fixing hole of the clutch to the corresponding position of the screw hole on the fixing seat.