A compact padlock
By introducing a closed-loop structure of a lever and hook, along with a combination lock component, into the padlock, and combining this with the sliding cooperation of the support base and the limit base, the problem of the padlock's large size is solved, achieving a compact design and convenient operation, and providing dual unlocking functions with both key and combination lock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JINGYU IND
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-03
AI Technical Summary
Existing padlocks are too large to meet the compact requirements of future locks, and lack compatibility with key components.
It adopts a closed-loop structure combining a rocker arm and a hook, combined with a combination key and a limit seat. Through the sliding cooperation of the support seat and the limit seat, and the cooperation of the combination wheel and the lock cylinder, a compact design is achieved, enabling dual unlocking with both key and combination.
The padlock features a compact structure, reduces the space occupied by modules, enhances ease of use, and combines key and password unlocking functions.
Smart Images
Figure CN224452471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of padlock technology, specifically to a compact padlock. Background Technology
[0002] The most common type of padlock currently on the market mainly consists of a hook-shaped part on one side of the lock body and an open lever on the other side. The open lever is controlled by a number wheel and a push button on the lock body. Normally, the open lever is engaged with the hook and is in a locked state. When the number wheel rotates to the set unlock number, the push button can be pushed to make the open lever pivot and separate from the hook, so as to lock or unlock.
[0003] As described in the full text of Chinese patent document CN2327759Y, a push-button type number padlock is disclosed. It is a padlock that controls opening and closing by a number. It has a number wheel on the edge of the lock body and a hook at one end of the lock body. There is an open bar on the side of the hook and a button on the surface of the lock body. Its feature is that when the lock body is rotated to the set number, the button on the surface of the lock body can be pressed, which will cause the open bar on the hook side to pivot and open towards the surface of the lock body, making it more convenient for the user to use.
[0004] Similar padlocks include one disclosed in Chinese patent document CN2338444Y, which features a first opening on each of the left and right sides below the hook of the padlock body, a second opening, and a third opening below the second opening. The numbering wheel consists of a numbering wheel spindle, an inner sleeve, a pressure plate, and a spring. The top cover also has an opening opposite the third opening of the padlock body. The locking bar is located in the second opening of the padlock body and has a pivot hole and a pressing part, pivotally connected to a protrusion fitted next to the second opening. The number-changing push rod is located at the third opening of the padlock body and is L-shaped, with a top plate on the shorter side and a pushing part on the longer side. Its advantages are: simple structure, convenient use, and more practical operation.
[0005] The padlocks mentioned above lack a key assembly and are unsuitable for the requirements of subsequent locks. Later, padlocks with both combination locks and keys appeared on the market, but their modular layout takes up a lot of space, making existing padlocks quite bulky. Summary of the Invention
[0006] In view of the above-mentioned technical problems, the present invention provides a padlock with a compact structure.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A compact padlock is provided, comprising a lock housing and a rocker arm. The lock housing is provided with a hook, and the rocker arm is hinged to the lock housing. In the locked state, the rocker arm and the hook are connected to form a closed loop. When unlocking, an external force presses the rocker arm inward, causing the closed loop to open. Its characteristic is:
[0009] The lock case also includes a combination lock assembly, a lock cylinder, a support base, and a limit seat; the support base is slidably installed inside the lock case, the lock cylinder is installed on the support base, and the limit seat is slidably installed on the support base, with the limit seat abutting against the rocker arm and the lock cylinder to limit the rotation of the rocker arm;
[0010] The limiting seat is provided with a clearance protrusion, and the outer side of the lock cylinder is provided with a clearance groove. When the lock cylinder is inserted with the correct key and rotated until the clearance groove aligns with the clearance protrusion, the limiting seat can move away from the rocker arm to release the restriction on the rocker arm.
[0011] The password component can limit the support seat, and after the correct password is entered, it can release the support seat limit, and the support seat and the limit seat move as a whole to release the limit on the swing arm.
[0012] Specifically, the combination component includes a central rod, multiple combination wheels, and multiple switching wheels. The combination wheels are rotatably mounted on the lock case and partially exposed. The multiple switching wheels are coaxially mounted inside the multiple combination wheels, and the switching wheels rotate together with their corresponding combination wheels. The central rod passes through the multiple switching wheels and presses against the support base. Only after the multiple combination wheels have rotated to the correct combination can the central rod move axially to release the restriction on the support base.
[0013] Specifically, the support base is provided with a positioning groove, and the end of the center rod is provided with a positioning protrusion, which is embedded in the positioning groove.
[0014] Specifically, the center rod is arranged along the length of the lock case, and the lock core is arranged perpendicular to the center rod.
[0015] Specifically, the lock housing is equipped with a first spring that applies force to the support seat so that the support seat maintains its restoring potential energy toward the rocker arm; the support seat is equipped with a second spring that applies force to the limit seat so that the limit seat maintains its restoring potential energy toward the rocker arm.
[0016] Specifically, the lock case is flat, the combination wheel is exposed from three adjacent sides of the lock case, and the lock cylinder opening is exposed from the narrow side of the lock case.
[0017] Specifically, the support base is provided with an upper chamber and a lower chamber, the locking core is located in the lower chamber, and the limiting seat is located in the upper chamber and partially extends into the lower chamber to abut the locking core.
[0018] Specifically, the clearance protrusion is V-shaped, and the clearance groove is V-shaped.
[0019] Specifically, a guide convex-concave structure is provided between the inner wall of the upper chamber and the outer wall of the limiting seat.
[0020] Specifically, the hook is integrally formed into the lock housing.
[0021] The beneficial effects of this utility model are:
[0022] This utility model discloses a compact padlock. Compared with the prior art, the padlock is based on the swing of the lever to open the closed loop formed by the hook. By setting a support base and a limit base, as well as the locking relationship between the key component and the support base and the lock core and the limit base, the space occupied by the module can be reduced, making the entire padlock structure more compact and easier to use. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of a compact padlock as shown in the embodiment.
[0025] Figure 2 This is an exploded view of a compact padlock as described in the embodiment.
[0026] Figure 3 This is a cross-sectional view of a compact padlock as described in the embodiment.
[0027] Figure label:
[0028] Lock case 1, hook 11;
[0029] 2.
[0030] 3. Password component; 31. Center rod; 32. Positioning protrusion; 33. Password wheel; 34. Code wheel;
[0031] Lock core 4, clearance slot 41;
[0032] Support base 5, positioning groove 51;
[0033] Limiting seat 6, yielding protrusion 61;
[0034] 7. Guide convex and concave structure. Detailed Implementation
[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0036] This embodiment features a compact padlock, such as... Figures 1 to 3As shown, the device includes a lock housing 1 and a rocker arm 2. The lock housing 1 is provided with an inverted J-shaped hook 11, which is integrally formed into the lock housing 1. The rocker arm 2 is hinged to the lock housing 1. In the locked state, the rocker arm 2 and the hook 11 are connected to form a closed loop (e.g., ...). Figure 1 (as shown in the diagram); when unlocking, an external force presses inward on the rocker arm 2, causing the closed loop to open.
[0037] The lock housing 1 is provided with a combination key assembly 3, a lock core 4, a support base 5, and a limiting seat 6. The support base 5 is longitudinally slidably installed inside the lock housing 1, the lock core 4 is laterally installed on the support base 5, and the limiting seat 6 is longitudinally slidably installed on the support base 5. The limiting seat 6 abuts against the rocker arm 2 and the lock core 4 to limit the rotation of the rocker arm 2.
[0038] The limiting seat 6 is provided with a clearance protrusion 61, and the outer side of the lock core 4 is provided with a clearance groove 41. When the support seat 5 is locked, and the clearance protrusion 61 is misaligned with the clearance groove 41, the limiting seat 6 remains against the rocker arm 2, restricting the rotation of the rocker arm 2. When the lock core 4 is inserted with the correct key and rotated until the clearance groove 41 aligns with the clearance protrusion 61, the clearance protrusion 61 is embedded in the clearance groove 41, and the limiting seat 6 can move away from the rocker arm 2 to release the restriction on the rocker arm 2, thus enabling the key to unlock.
[0039] The password component 3 can limit the support base 5. After the correct password is entered, the support base 5 can be released from the limit. The support base 5 and the limit seat 6 move as a whole to release the limit on the swing rod 2, thus realizing password unlocking.
[0040] Specifically, the combination component 3 includes a central rod 31, multiple combination wheels 33, and multiple adjustment wheels 34. The combination wheels 33 are rotatably mounted on the lock housing 1 and partially exposed. The multiple adjustment wheels 34 are coaxially mounted within the multiple combination wheels 33, and the adjustment wheels 34 rotate together with their corresponding combination wheels 33. The central rod 31 passes through the multiple adjustment wheels 34 and abuts against the support base 5. Only after the multiple combination wheels 33 have rotated to the correct combination can the central rod 31 move axially to release the restriction on the support base 5.
[0041] Specifically, the support base 5 is provided with a positioning groove 51, and the end of the center rod 31 is provided with a positioning protrusion 32, which is embedded in the positioning groove 51.
[0042] Specifically, the center rod 31 is arranged along the length of the lock case 1, and the lock core 4 is arranged perpendicular to the center rod 31.
[0043] Specifically, the lock housing 1 is equipped with a first spring (not shown in the figure) that applies force to the support base 5 so that the support base 5 maintains its reset potential energy toward the rocker arm 2; the support base 5 is equipped with a second spring (not shown in the figure) that applies force to the limiting seat 6 so that the limiting seat 6 maintains its reset potential energy toward the rocker arm 2. In the unlocked state, the limiting seat 6 and the support base 5 can automatically reset after external force stops pressing the rocker arm 2.
[0044] Specifically, the lock case 1 is flat, the combination wheel 33 is exposed from the three adjacent sides of the lock case 1, and the opening of the lock core 4 is exposed from the narrow side of the lock case 1.
[0045] Specifically, the support base 5 is provided with an upper chamber and a lower chamber, the locking core 4 is located in the lower chamber, the limiting seat 6 is located in the upper chamber and the clearance protrusion 61 passes through the lower chamber to abut the locking core 4.
[0046] Specifically, the limiting seat 6 is provided with two V-shaped relief protrusions 61, and the two relief grooves 41 are V-shaped.
[0047] Specifically, a guide convex-concave structure 7 is provided between the inner wall of the upper chamber and the outer wall of the limiting seat 6, so that the limiting seat 6 can move up and down more stably.
[0048] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0049] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0050] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
Claims
1. A compact padlock, comprising a lock housing (1) and a lever (2), wherein the lock housing (1) is provided with a hook (11), and the lever (2) is hinged to the lock housing (1); in the locked state, the lever (2) and the hook (11) are connected to form a closed loop; when unlocking, an external force presses the lever (2) inward to open the closed loop; characterized in that: The lock case (1) is also provided with a combination key (3), a lock core (4), a support base (5) and a limiting seat (6); the support base (5) is slidably installed inside the lock case (1), the lock core (4) is installed on the support base (5), the limiting seat (6) is slidably installed on the support base (5), and the limiting seat (6) abuts against the rocker arm (2) and the lock core (4) to limit the rotation of the rocker arm (2); The limiting seat (6) is provided with a relief protrusion (61), and the outer side of the lock core (4) is provided with a relief groove (41). When the lock core (4) is inserted with the correct key and rotated until the relief groove (41) aligns with the relief protrusion (61), the limiting seat (6) can move away from the rocker arm (2) to release the restriction on the rocker arm (2). The password component (3) can limit the support base (5). After the correct password is entered, the support base (5) can be released from the limit. The support base (5) and the limit base (6) move as a whole to release the limit on the swing arm (2).
2. A compact structure padlock according to claim 1, characterized in that: The combination component (3) includes a central rod (31), multiple combination wheels (33) and multiple dialing wheels (34). The combination wheels (33) are rotatably mounted on the lock housing (1) and partially exposed. The multiple dialing wheels (34) are coaxially mounted in the multiple combination wheels (33) in a one-to-one correspondence. The dialing wheels (34) rotate together with the corresponding combination wheels (33). The central rod (31) passes through the multiple dialing wheels (34) and abuts against the support base (5). Only after the multiple combination wheels (33) turn to the correct combination can the central rod (31) move axially to release the restriction on the support base (5).
3. A compact structure padlock according to claim 2, characterized in that: The support base (5) is provided with a positioning groove (51), and the end of the center rod (31) is provided with a positioning protrusion (32), which is embedded in the positioning groove (51).
4. A compact structure padlock according to claim 2, characterized in that: The center rod (31) is arranged along the length of the lock case (1), and the lock core (4) is arranged perpendicular to the center rod (31).
5. A compact padlock according to claim 2, characterized in that: The lock housing (1) is provided with a first spring that applies force to the support seat (5) so that the support seat (5) maintains the reset potential energy toward the rocker arm (2); the support seat (5) is provided with a second spring that applies force to the limit seat (6) so that the limit seat (6) maintains the reset potential energy toward the rocker arm (2).
6. A compact padlock according to claim 2, characterized in that: The lock case (1) is flat, the combination wheel (33) is exposed from the three adjacent sides of the lock case (1), and the opening of the lock core (4) is exposed from the narrow side of the lock case (1).
7. A compact padlock according to claim 1, characterized in that: The support base (5) is provided with an upper chamber and a lower chamber. The locking core (4) is located in the lower chamber. The limiting seat (6) is located in the upper chamber and partially extends into the lower chamber to abut the locking core (4).
8. A compact padlock according to claim 7, characterized in that: The clearance protrusion (61) is V-shaped, and the clearance groove (41) is V-shaped.
9. A compact padlock according to claim 7, characterized in that: A guide convex-concave structure (7) is provided between the inner wall of the upper chamber and the outer wall of the limiting seat (6).
10. A compact padlock according to claim 1, characterized in that: The hook (11) is integrally formed on the lock shell (1).