Automatic locking device
By designing the sliding groove, bolt, and fixing components in the automatic locking device, the problem of bolt damage and irreplaceability was solved, enabling convenient bolt replacement and reducing resource waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUARUI DENTSU (BEIJING) ELECTRIC POWER CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-05-19
AI Technical Summary
The locking tongue is damaged after prolonged use and cannot be replaced, resulting in the need to replace the entire device, which is wasteful.
An automatic locking device was designed, comprising a sliding groove, a bolt, a rotating rod, a lock cylinder, a limiting plate, and a fixing component. The bolt can be easily replaced through components such as a rotating column, gears, a fixing column, and a torsion spring. The operation is simple and requires no tools.
It enables convenient replacement of the locking tongue, reduces the frequency of overall device replacement, and reduces resource waste.
Smart Images
Figure CN224260066U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of locking device technology, and more particularly to an automatic locking device. Background Technology
[0002] Locks are metal devices installed at the openings or joints of doors, windows, and other objects, preventing people from opening them at will. They can only be opened with a key, password, magnetic card, or similar means.
[0003] After prolonged use, most locks suffer from damaged bolts that cannot be replaced, requiring the replacement of the entire device, resulting in waste. Utility Model Content
[0004] This application provides an automatic locking device to solve the problem of a damaged lock tongue that cannot be replaced.
[0005] This application provides an automatic locking device, including a fixed housing and a limiting housing, and further comprising:
[0006] A sliding groove is formed inside a limiting shell. A locking tongue is slidably installed inside the sliding groove. Several first springs that are fixed to the inner wall of the sliding groove are fixedly installed at one end of the locking tongue. The fixed shell is set on one side of the limiting shell. The other end of the locking tongue extends into the fixed shell and is inserted into the fixed shell. A rotating rod is rotatably installed inside the sliding groove and at the top of the locking tongue.
[0007] A lock cylinder is fixedly installed on a limiting shell. A limiting groove is formed inside the limiting shell. A limiting plate is slidably installed inside the limiting groove. Several second springs that are fixed to the inner wall of the limiting groove are fixedly installed on one side of the limiting plate.
[0008] A fixing component is located within a limiting shell and is used to fix the position of the rotating rod.
[0009] Preferably, the fixing component includes:
[0010] The power chamber is located within a limiting shell. A gear is rotatably mounted inside the power chamber. A fixing post is fixedly mounted on the bottom of the gear. A torsion spring is sleeved on the fixing post. Both ends of the torsion spring are fixedly connected to the gear and the interior of the power chamber, respectively. A rack is meshed on one side of the gear. A limiting strip is fixedly mounted on one end of the rack. One end of the limiting strip extends into the rotating rod and is inserted into the rotating rod.
[0011] Preferably, a rotating column is fixedly installed on the top of the gear, and the upper end of the rotating column passes through the power cavity and extends to the outside.
[0012] Preferably, the other end of the latch is arc-shaped.
[0013] Preferably, the limiting plate is in close contact with the lock cylinder.
[0014] Preferably, the second springs are distributed at equal intervals.
[0015] Preferably, both the rack and the limiting strip are slidably connected to the power cavity. Beneficial effects
[0016] Considering the problem of irreplaceable damaged latches, a rotating column, gear, fixed column, torsion spring, rack, and limit bar are designed. Once the limit bar disengages from the rotating rod, the latch can be removed. Then, by reversing the above steps, a new latch can be installed. The operation is simple and requires no tools.
[0017] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic locking device according to the present invention.
[0020] Figure 2 This is a schematic diagram of the limiting shell area structure of an automatic locking device according to the present invention.
[0021] Figure 3 This is one of the schematic diagrams of the cross-sectional structure of the limiting shell of an automatic locking device according to this utility model.
[0022] Figure 4 This utility model relates to an automatic locking device. Figure 3 Enlarged structural diagram at point A;
[0023] Figure 5 This is the second schematic diagram of the cross-sectional structure of the limiting shell of the automatic locking device of this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Fixed shell; 2. Limiting shell; 3. Sliding groove; 4. Lock tongue; 5. First spring; 6. Rotating rod; 7. Lock cylinder; 8. Limiting groove; 9. Limiting plate; 10. Second spring; 11. Power chamber; 12. Gear; 13. Rotating column; 14. Fixed column; 15. Torsion spring; 16. Rack; 17. Limiting strip. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.
[0028] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0029] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0032] This utility model provides, for example Figure 1-5 An automatic locking device shown includes a fixed housing 1 and a limiting housing 2, and further includes:
[0033] A sliding groove 3 is formed inside the limiting shell 2. A locking tongue 4 is slidably installed inside the sliding groove 3. Several first springs 5 fixed to the inner wall of the sliding groove 3 are fixedly installed at one end of the locking tongue 4. The fixed shell 1 is set on one side of the limiting shell 2. The other end of the locking tongue 4 extends into the fixed shell 1 and is inserted into the fixed shell 1. A rotating rod 6 is rotatably installed inside the sliding groove 3 and at the top of the locking tongue 4.
[0034] Lock cylinder 7 is fixedly installed on limiting shell 2. Limiting groove 8 is opened in limiting shell 2. Limiting plate 9 is slidably installed in limiting groove 8. Several second springs 10 fixed to the inner wall of limiting groove 8 are fixedly installed on one side of limiting plate 9.
[0035] The fixing component is located inside the limiting shell 2 and is used to fix the position of the rotating rod 6.
[0036] When the door is closed, the latch 4 contacts the fixed shell 1, the fixed shell 1 squeezes the latch 4 to slide, and at the same time, several first springs 5 are squeezed and contracted. When the limiting shell 2 is moved to a suitable position, under the action of the rebound force of several first springs 5, the other end of the latch 4 is inserted into the fixed shell 1, so as to achieve the function of automatic locking.
[0037] When it is necessary to replace the bolt 4, the bolt 4 can be removed through the fixed component, and the new bolt 4 can be installed by reversing the above operation. The operation is simple and does not require tools.
[0038] When unlocking is required, pull the limiting plate 9 downwards. At the same time, several second springs 10 are compressed and contracted. Then, use the key to open the limiting shell 2 through the lock cylinder 7. After taking out the key, under the action of the rebound force of several second springs 10, the limiting plate 9 slides away from the second springs 10, which can seal the lock cylinder 7 and ensure that dust will not enter the lock cylinder 7 when it is not in use.
[0039] In this embodiment, the fixing component includes:
[0040] The power chamber 11 is located inside the limiting shell 2. A gear 12 is rotatably installed inside the power chamber 11. A fixing post 14 is fixedly installed at the bottom of the gear 12. A torsion spring 15 is sleeved on the fixing post 14. The two ends of the torsion spring 15 are fixedly connected to the gear 12 and the inside of the power chamber 11, respectively. A rack 16 is meshed on one side of the gear 12. A limiting strip 17 is fixedly installed at one end of the rack 16. One end of the limiting strip 17 extends into the rotating rod 6 and is inserted into the rotating rod 6.
[0041] When the latch 4 needs to be replaced, first rotate the rotating column 13. The rotating column 13 drives the gear 12 and the fixed column 14 to rotate. At the same time, the torsion spring 15 is twisted. The gear 12 drives the rack 16 that meshes with it to slide. The rack 16 drives the limiting strip 17 to slide. When the limiting strip 17 disengages from the rotating rod 6, the latch 4 can be taken out. Then, the new latch 4 can be installed by reversing the above operation. The operation is simple and does not require tools.
[0042] In this embodiment, a rotating column 13 is fixedly installed on the top of the gear 12, and the upper end of the rotating column 13 passes through the power cavity 11 and extends to the outside.
[0043] The rotating column 13 facilitates the rotation of the gear 12.
[0044] In this embodiment, the other end of the locking tongue 4 is arc-shaped.
[0045] In this process, the fixed shell 1 is ensured to compress the locking tongue 4 and allow it to slide.
[0046] In this embodiment, the limiting plate 9 is in close contact with the lock cylinder 7.
[0047] Among them, the lock cylinder 7 can be sealed to ensure that dust will not enter the lock cylinder 7 when it is not in use.
[0048] In this embodiment, several second springs 10 are distributed at equal intervals.
[0049] Among them, the limit plate 9 is guaranteed to slide stably.
[0050] In this embodiment, both the rack 16 and the limiting strip 17 are slidably connected to the power chamber 11.
[0051] This ensures that both the rack 16 and the limiting strip 17 can slide within the power chamber 11.
[0052] Working principle: When the door is closed, the latch 4 contacts the fixed shell 1, the fixed shell 1 squeezes the latch 4 to slide, and at the same time, several first springs 5 are squeezed and contracted. When the limiting shell 2 is moved to the appropriate position, under the action of the rebound force of several first springs 5, the other end of the latch 4 is inserted into the fixed shell 1, so as to achieve the function of automatic locking.
[0053] When the latch 4 needs to be replaced, first rotate the rotating column 13. The rotating column 13 drives the gear 12 and the fixed column 14 to rotate. At the same time, the torsion spring 15 is twisted. The gear 12 drives the rack 16 that meshes with it to slide. The rack 16 drives the limiting strip 17 to slide. When the limiting strip 17 is disengaged from the rotating rod 6, the latch 4 can be taken out. Then, the new latch 4 can be installed by reversing the above operation. The operation is simple and does not require tools.
[0054] When unlocking is required, pull the limiting plate 9 downwards. At the same time, several second springs 10 are compressed and contracted. Then, use the key to open the limiting shell 2 through the lock cylinder 7. After taking out the key, under the action of the rebound force of several second springs 10, the limiting plate 9 slides away from the second springs 10, which can seal the lock cylinder 7 and ensure that dust will not enter the lock cylinder 7 when it is not in use.
[0055] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. An automatic locking device, comprising a fixed housing (1) and a limiting housing (2), characterized in that, Also includes: A sliding groove (3) is formed inside a limiting shell (2). A locking tongue (4) is slidably installed inside the sliding groove (3). A plurality of first springs (5) fixed to the inner wall of the sliding groove (3) are fixedly installed at one end of the locking tongue (4). A fixed shell (1) is set on one side of the limiting shell (2). The other end of the locking tongue (4) extends into the fixed shell (1) and is inserted into the fixed shell (1). A rotating rod (6) is rotatably installed inside the sliding groove (3) and at the top of the locking tongue (4). Lock cylinder (7), the lock cylinder (7) is fixedly installed on the limiting shell (2), the limiting shell (2) has a limiting groove (8) inside, the limiting groove (8) is slidably installed in the limiting groove (8), and a number of second springs (10) fixed to the inner wall of the limiting groove (8) are fixedly installed on one side of the limiting plate (9). A fixing component is located inside the limiting shell (2) and is used to fix the position of the rotating rod (6).
2. The automatic locking device according to claim 1, characterized in that: The fixing component includes: A power chamber (11) is opened inside a limiting shell (2). A gear (12) is rotatably installed inside the power chamber (11). A fixing column (14) is fixedly installed at the bottom of the gear (12). A torsion spring (15) is sleeved on the fixing column (14). The two ends of the torsion spring (15) are fixedly connected to the gear (12) and the inside of the power chamber (11), respectively. A rack (16) is meshed on one side of the gear (12). A limiting strip (17) is fixedly installed at one end of the rack (16). One end of the limiting strip (17) extends into the rotating rod (6), and the limiting strip (17) is inserted into the rotating rod (6).
3. The automatic locking device according to claim 2, characterized in that: A rotating column (13) is fixedly installed on the top of the gear (12), and the upper end of the rotating column (13) passes through the power cavity (11) and extends to the outside.
4. The automatic locking device according to claim 1, characterized in that: The other end of the latch (4) is arc-shaped.
5. An automatic locking device according to claim 1, characterized in that: The limiting plate (9) is in close contact with the lock cylinder (7).
6. An automatic locking device according to claim 1, characterized in that: Several of the second springs (10) are distributed at equal intervals.
7. An automatic locking device according to claim 2, characterized in that: The rack (16) and the limiting strip (17) are both slidably connected to the power chamber (11).