Telescopic lock structure driven by lead screw motor and having in-place detection function
The telescopic lock structure driven by the screw motor combines the Z-shaped lock rod fixing plate and guide column to adjust the lock rod length and detect it in place, solving the problem of the traditional lock tongue expansion and length fixation, and is suitable for a variety of door bodies and operations Simple.
Patent Information
- Application Number
- CN202420304882.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-02-19
AI Technical Summary
The lock tongue of traditional electronic control locks has a fixed length and cannot be adjusted, which makes it impossible to adapt to door bodies with different lock groove depths, which is inconvenient to use.
The telescopic lock structure driven by a screw motor is adopted. The telescopic lock rod fixing plate and guide column are designed with a Z-shaped lock rod, combined with the return spring and contact switch, to achieve telescopic length adjustment and in-place detection of the lock rod.
It realizes free adjustment of the expansion and contraction length of the lock rod, and is suitable for door bodies with various lock groove depths. It is simple and convenient to operate and has a wider range of applications.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of telescopic lock structures, in particular to a telescopic lock structure driven by a screw motor and having an in-position detection function. Background Art
[0002] In life, in order to protect the safety of their belongings, people usually put expensive items in boxes and lock the boxes with locks to improve the safety of the items. The types of locks are divided into ball locks, padlocks, mortise locks, pin locks, drawer locks, combination locks, electric locks and many other types of locks.
[0003] The use of locks is to engage the lock rod with the lock seat to close and lock the door. The electric lock is a new type of door lock derived from the development of modern science and technology. It locks the door by driving the lock tongue to retract through a motor. However, the lock tongue of a traditional electric lock has a fixed length and cannot be adjusted. When used on a door with a shallow or deep lock groove, it cannot be installed and used or the door cannot be locked.
[0004] Therefore, it is necessary to provide a telescopic lock structure driven by a screw motor and having an in-place detection function to solve the above technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a telescopic lock structure with an in-position detection function driven by a screw motor, with a contact switch that can be installed passively, and a contact plug that moves with the lock rod. The telescopic length of the lock rod can be freely adjusted according to the installation position, and the lock groove depth of various door bodies can be installed. The utility model has stronger applicability and is simple and convenient to operate when used.
[0006] The utility model provides a telescopic lock structure with an in-position detection function driven by a screw motor, comprising:
[0007] An upper sill, a motor bracket is welded to the middle part of the inner side of the upper sill, a lead screw motor is fixed with bolts on the top surface of the motor bracket, a locking rod fixing plate is provided directly below the output end of the lead screw motor, the locking rod fixing plate is designed in a Z-shaped structure, the tail end of the locking rod fixing plate is located directly below the output end of the lead screw motor and is threadedly connected to the output end of the lead screw motor, symmetrical locking rods are fixed on both sides of the middle part of the bottom surface where the locking rod fixing plate is connected to the lead screw motor, symmetrical guide columns are connected on both sides of the locking rod, and the top ends of the guide columns are connected to both sides of the bottom surface of the motor bracket, a contact plug is fixed to the bottom surface of the front end of the locking rod fixing plate, a contact switch is provided below the contact plug, and the contact plug is plugged into the inner side of the contact switch.
[0008] The Z-shaped design of the lock rod fixing plate can shrink the driving space on the lock rod fixing plate side, reduce the transmission space required for the contact switch and the contact plug, and improve the space utilization rate of the lock rod installation. The guide columns at both ends of the lock rod fixing plate can fix the lock rod fixing plate and the motor bracket, ensuring the lifting stability of the lock rod fixing plate during passive lifting.
[0009] Preferably, a return spring is sleeved in the middle of the guide column, and the two ends of the return spring are respectively abutted against the bottom surface of the motor bracket and the top surface of the lock rod fixing plate. The return spring can increase the falling efficiency of the lock rod fixing plate, avoid the jamming of the lock rod fixing plate, and increase the sliding stability between the lock rod fixing plate and the guide column.
[0010] Preferably, a bushing is fixed at the position where the top surface of the locking rod fixing plate is connected to the return spring, the guide column slides on the inside of the bushing, and the bottom of the return spring is fitted on the outside of the bushing. The bushing can increase the sliding area between the locking rod fixing plate and the guide column, thereby increasing the sliding effect of the lifting and lowering of the locking rod fixing plate.
[0011] Preferably, a contact bracket is welded and fixed below the inner wall of the upper sill, and the contact switch is fixed to the side of one end of the contact switch away from the upper sill. The contact bracket can adjust the connection distance between the contact plug and the contact switch by connecting the position of the contact switch.
[0012] Preferably, a lock seat is provided at the bottom of the upper sill just below the lock rod, and the lock rod is inserted into the inner side of the lock seat, so that the lock seat can lock the lock rod after it falls down.
[0013] Preferably, a screw motor nut is fixed at the position where the lock rod fixing plate is connected to the output end of the screw motor, and the screw motor nut is threadedly screwed to the output end of the screw motor. The screw motor nut has the best screw motor thread matching degree and can enhance the transmission effect of the screw motor.
[0014] Compared with the related art, the telescopic lock structure with in-position detection function driven by a screw motor provided by the utility model has the following beneficial effects:
[0015] 1. The utility model controls the locking rod to perform telescopic movement through a screw motor, and a locking rod fixing plate that moves synchronously with the locking rod is connected to the end of the locking rod. When the locking rod is installed and used, the installation position of the contact switch can be adjusted to adjust the telescopic length of the locking rod, so that it is suitable for door bodies with various lock groove depths. When in use, it only needs to operate the contact switch to start, which is simple and convenient and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A structural schematic diagram of a preferred embodiment of a telescopic lock structure with an in-position detection function driven by a screw motor provided by the utility model;
[0017] Figure 2 for Figure 1 The structural schematic diagram of the side is shown.
[0018] Numbers in the figure: 1. Upper sill; 2. Motor bracket; 3. Contact bracket; 4. Screw motor; 5. Lock rod fixing plate; 6. Lock rod; 7. Bushing; 8. Guide column; 9. Return spring; 10. Contact plug; 11. Contact switch; 12. Lock seat; 13. Screw motor nut. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0020] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0021] Please see attached Figure 1-Figure 2 The embodiment of the utility model provides a telescopic lock structure with an in-place detection function driven by a screw motor, and the telescopic lock structure with an in-place detection function driven by a screw motor includes:
[0022] An upper sill 1 is welded with a motor bracket 2 on the middle inner side of the upper sill 1. The motor bracket 2 can fix the motor in a suspended manner. The top surface of the motor bracket 2 is connected to a screw motor 4 through bolt locking. The output end of the screw motor 4 extends to the middle of the lower part of the motor bracket 2. A locking rod fixing plate 5 is provided under the motor bracket 2. The locking rod fixing plate 5 itself is designed in a Z shape, and the head and tail ends of the Z can be used to reduce the space required for transmission at both ends of the locking rod fixing plate 5. A screw motor 4 nut is fixed at the center of the top surface of the Z-shaped tail end of the locking rod fixing plate 5. The screw motor 4 nut is threadedly sleeved and screwed with the output end of the screw motor 4. The output end of the screw motor 4 can drive the screw motor 4 nut and the locking rod fixing plate 5 to rise and fall.
[0023] Symmetrical locking rods 6 are fixed on both sides of the position where the locking rod fixing plate 5 is connected to the screw rod and clicks on the nut through nuts. The bottom of the locking rod 6 extends to the lower part of the bottom surface of the upper sill 1. Guide columns 8 are provided on the bottom surfaces on both sides of the locking rod fixing plate 5 connected to the locking rod 6. The upper part of the guide column 8 is passed through the inner side of the locking rod fixing plate 5 and is slidably connected to the locking rod fixing plate 5. The top of the guide column 8 is connected to both sides of the bottom surface of the motor bracket 2. The motor bracket 2 is fixed by the locking rod 6, which can ensure that the locking rod fixing plate 5 can have a stable lifting effect when it is driven to lift by the screw motor 4.
[0024] A bushing 7 is fixed at the position where the locking rod fixing plate 5 and the guide column 8 are slidably connected. The bushing 7 is slidably connected to the guide column 8, which can increase the sliding contact area between the locking rod fixing plate 5 and the guide column 8 and improve the stability of the lifting and sliding of the locking rod fixing plate 5. A section of the guide column 8 located at the lower part of the motor bracket 2 is sleeved with a return spring 9. The return spring 9 can form a support between the locking rod fixing plate 5 and the motor bracket 2, thereby improving the position movement effect of the locking rod fixing plate 5 when it moves downward and avoiding jamming.
[0025] The bottom surface of the Z-shaped head position of the locking rod fixing plate 5 is fixed to the bottom surface of the locking rod fixing plate 5 by bolts. The inner wall of the upper sill 1 is located below the connection position of the motor bracket 2 and is welded with an electric contact. The other end side of the contact bracket 3 is connected to a contact switch 11, and the contact switch 11 is located directly below the contact plug 10. By starting the screw motor 4 to drive the locking rod fixing plate 5 to rise and fall, the contact plug 10 can be driven to contact with the contact switch 11 to complete the switch control.
[0026] When the telescopic distance of the locking rod 6 needs to be adjusted, the length control of the locking rod 6 can be completed by adjusting the installation position of the contact switch 11 .
[0027] Usage process:
[0028] When an unlocking signal is transmitted to the screw motor 4, the motor rotates forward, driving the screw motor 4 nut to rise, and the screw motor 4 nut drives the lock rod fixing plate 5 to rise along the guide column 8. At this time, the lock rod 6 gradually disengages from the lock seat 12, and the contact plug 10 gradually disengages from the contact switch 11, until the lock rod 6 and the contact plug 10 are completely disengaged, and the unlocking is completed; when a locking signal is transmitted to the screw motor 4, the motor reverses, driving the screw motor 4 nut to descend, and the screw motor 4 nut drives the lock rod fixing plate 5 to descend along the guide column 8 until the lock rod 6 is inserted into the lock seat 12. At this time, the contact plug 10 is inserted into the contact switch 11, the contacts are turned on, and the locking completion signal is output.
[0029] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A telescopic lock structure driven by a screw motor and having an in-position detection function, characterized in that: The invention comprises an upper sill (1), a motor bracket (2) is welded to the middle part of the inner side of the upper sill (1), a screw motor (4) is fixed to the top surface of the motor bracket (2) by bolts, a locking rod fixing plate (5) is provided directly below the output end of the screw motor (4), the locking rod fixing plate (5) is designed in a Z-shaped structure, the tail end of the locking rod fixing plate (5) is located directly below the output end of the screw motor (4), and is screwed with the output end of the screw motor (4), symmetrical locking rods (6) are fixed on both sides of the middle part of the bottom surface of the position where the locking rod fixing plate (5) is connected to the screw motor (4), symmetrical guide pillars (8) are connected to both sides of the locking rod (6), the top ends of the guide pillars (8) are connected to both sides of the bottom surface of the motor bracket (2), a contact plug (10) is fixed to the bottom surface of the front end of the locking rod fixing plate (5), a contact switch (11) is provided below the contact plug (10), and the contact plug (10) is plugged into the inner side of the contact switch (11).
2. A telescopic lock structure with an in-position detection function driven by a screw motor according to claim 1, characterized in that: A return spring (9) is sleeved in the middle of the guide column (8), and two ends of the return spring (9) are respectively in contact with the bottom surface of the motor bracket (2) and the top surface of the lock rod fixing plate (5).
3. A telescopic lock structure with an in-position detection function driven by a screw motor according to claim 2, characterized in that: A bushing (7) is fixed at the position where the top surface of the locking rod fixing plate (5) is connected to the return spring (9), the guide column (8) slides inside the bushing (7), and the bottom of the return spring (9) is sleeved on the outside of the bushing (7).
4. The telescopic lock structure with in-position detection function driven by a screw motor according to claim 1, characterized in that: A contact bracket (3) is welded and fixed below the inner wall of the upper ridge (1), and the contact switch (11) is fixed on the side surface of one end of the contact switch (11) facing away from the upper ridge (1).
5. The telescopic lock structure with in-position detection function driven by a screw motor according to claim 1, characterized in that: A lock seat (12) is provided at the bottom of the upper sill (1) and is located directly below the lock rod (6), and the lock rod (6) is inserted into the inner side of the lock seat (12).
6. The telescopic lock structure with in-position detection function driven by a screw motor according to claim 1, characterized in that: A screw motor nut (13) is fixed at the position where the lock rod fixing plate (5) is connected to the output end of the screw motor (4), and the screw motor nut (13) is screwed to the output end of the screw motor (4).