A combination hasp lock

Abstract

The utility model relates to a kind of password hasp lock, including hasp, base and the opening and closing cover rotationally connected with base and the hanging ring movably connected in opening and closing cover, when opening and closing cover is in buckling position, hanging ring is hung in hasp, when opening and closing cover is in open position, hanging ring is separated from hasp, opening and closing cover is equipped with lock tongue piece and the password lock for controlling the locking state of lock tongue piece, the password wheel of password lock is exposed to opening and closing cover surface, opening and closing cover outer wall is equipped with the movable mouth for the lock tongue piece to extend outside, base is equipped with the lock mouth matched with lock tongue piece in correspondence with movable mouth position, when password is wrong, lock tongue piece is pushed into lock mouth and forms locking, so that opening and closing cover is positioned in buckling position;When password is correct, lock tongue piece is released from lock mouth under the action of first elastic member and realizes unlocking, so that opening and closing cover can be opened. Password lock is integrated on opening and closing cover, avoid the extremely high requirement to the size precision of parts when base and opening and closing cover are assembled, and unlocking and locking operation are convenient.

Description

Technical Field

[0001] This utility model relates to the field of latch lock technology, and in particular to combination latch locks. Background Technology

[0002] A latch lock is a multi-purpose latch lock suitable for single or double doors, windows, cabinets, and drawers that can be pushed, pulled, or pulled up and down. The latch lock includes a latch, a base, an opening / closing panel rotatably connected to the base, and a hanging ring movably connected to the opening / closing panel. The latch and base are fixed to the two parts that need to be locked. When the opening / closing panel is in the latched position, the hanging ring is engaged with the latch; when the opening / closing panel is in the open position, the hanging ring disengages from the latch. These latch locks are mostly non-combination locks, achieving basic locking only through the mechanical latch and hanging ring. Additional padlocks or other components are needed for personalized locking of bags and other items, making operation cumbersome and inconvenient to carry. Even though some latch locks attempt to integrate a combination lock function, most integrate the combination wheel into the base. Since the combination wheel needs to be exposed for easy user operation, a large opening area is created on the opening panel. When assembling the base and opening panel, to ensure that the combination wheel on the base accurately fits the opening of the opening panel and is stably exposed, extremely high requirements are placed on the dimensional accuracy of the base and opening panel, which greatly increases the processing difficulty and cost of the parts. Moreover, the large opening area on the opening panel may reduce the strength of the overall structure, making it more susceptible to damage when subjected to external impacts, thus affecting the locking effect of the latch lock. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art by providing a combination lock that integrates the combination lock into the opening and closing cover, thereby avoiding the extremely high requirements for the dimensional accuracy of the parts when assembling the base and the opening and closing cover, and making the unlocking and locking operations convenient.

[0004] The technical solution of this utility model is as follows: A combination latch lock includes a latch, a base, an opening and closing cover rotatably connected to the base, and a hanging ring movably connected to the opening and closing cover. When the opening and closing cover is in the latched position, the hanging ring is engaged with the latch. When the opening and closing cover is in the open position, the hanging ring disengages from the latch. The opening and closing cover is provided with a locking tongue and a combination lock for controlling the locking state of the locking tongue. The combination wheel of the combination lock is exposed on the surface of the opening and closing cover. The outer wall of the opening and closing cover is provided with an movable opening for the locking tongue to extend outward. The base is provided with a lock slot corresponding to the movable opening, which is adapted to the locking tongue. When the combination is incorrect, the locking tongue is pushed into the lock slot to form a lock, thus limiting the opening and closing cover to the latched position. When the combination is correct, the locking tongue is disengaged from the lock slot under the action of a first elastic element to achieve unlocking, allowing the opening and closing cover to be opened.

[0005] By adopting the above technical solution, the combination lock is an innovative product that combines the structure of a traditional lock with the function of a combination lock. This product integrates the combination lock onto the opening cover, avoiding assembly accuracy issues caused by drilling mounting holes for the combination wheel on the base, reducing the processing difficulty and cost of components. Furthermore, the opening cover does not require a large opening area to accommodate the combination wheel, ensuring the overall structural strength and improving the durability and security of the lock. In addition, the combination lock provides the lock with a combination locking function, allowing users to lock bags and other items without the need for additional padlocks or other components, making it simple to operate and convenient to carry. The product's structure and operation are simple; one end of the latch is connected to the lock's drive mechanism, and the other end is used to engage with the lock cylinder. When an incorrect combination is entered, the latch is pushed into the lock cylinder to lock the lock.

[0006] A further feature of this invention: the combination lock includes a rotating shaft located on the opening and closing cover, an inner wheel rotatably sleeved on the rotating shaft, and a combination wheel that is linked and cooperates with the inner wheel. A jump plate is provided below the inner wheel. One end of the jump plate is connected to the opening and closing cover, and a push block is provided on the other end. A stop bar is provided on the jump plate at the position corresponding to the inner wheel. A protrusion is provided on the stop bar facing the inner wheel. A notch is provided on the inner wheel for the protrusion to be inserted. The stop bar and the inner wheel are kept in close contact. The push block and the lock tongue are in oblique contact.

[0007] When the password is incorrect, the protrusion disengages from the notch, the outer circumference of the inner wheel pushes the jump plate downwards, and the push block moves down accordingly and pushes the lock tongue horizontally into the lock through the inclined surface.

[0008] When the password is correct, the springboard swings upward, causing the protrusion to embed into the notch. The push block then moves upward to release the pushing effect on the latch, and the first elastic element drives the latch to slide horizontally out of the lock.

[0009] With the further design described above, when the password is entered incorrectly, the inner wheel cannot properly engage with the protrusion on the ramp, causing the protrusion to disengage from the notch. At this point, the outer circumference of the inner wheel pushes the ramp downwards. During this downward swing, the push block on the ramp moves downwards and pushes the latch through the inclined surface, causing the latch to slide horizontally into the lock under external force, thus maintaining the locked state. When the password is entered correctly, the ramp swings upwards, causing the protrusion to accurately engage with the notch on the inner wheel. At this point, the push block moves upwards, releasing the pushing force on the latch. Under the action of the first elastic element, the latch slides horizontally out of the lock, thus unlocking the lock. This combination lock design not only improves the security of the password but also makes the unlocking operation simpler and more reliable.

[0010] A further feature of this invention is that one end of the springboard is pivotally connected to the opening and closing cover, and the other end of the springboard is provided with a second elastic element between it and the opening and closing cover. The second elastic element can drive the stop bar upward to abut against the inner wheel.

[0011] With the further modification described above, the second elastic element ensures that the lever always tends to press upwards against the inner wheel. The advantage of this design is that even without a correct password, when the inner wheel attempts to engage with the ramp, the lever remains firmly against the inner wheel due to the action of the second elastic element, increasing the accuracy of the engagement between the inner wheel and the ramp.

[0012] A further feature of this invention is that the end of the opening and closing cover near the buckle is rotatably connected to the base, and the locking tongue is located on the other end of the opening and closing cover.

[0013] With the aforementioned further design, the opening and closing cover can rotate relative to the base, thereby realizing the opening and closing action; the locking tongue is located at the other end of the opening and closing cover and is used to cooperate with the lock jaw on the lock body to realize the locking or unlocking function. At the same time, the rotatable connection between the opening and closing cover and the base, as well as the setting of the locking tongue, together constitute the main unlocking mechanism of the combination lock, ensuring the stability and reliability of the combination lock.

[0014] A further feature of this invention is that the combination lock includes a password reset key, which is exposed on the bottom surface of the opening and closing cover.

[0015] With the above-described further design, users can conveniently reset the combination lock's password by pressing the reset button. When a user needs to change the password, they can quickly reset it without disassembling the lock body. Furthermore, the reset button is exposed on the bottom surface of the opening cover, which is convenient for users and does not affect the overall aesthetics of the combination lock, ensuring both security and a good user experience.

[0016] A further feature of this invention is that the opening and closing cover includes a bottom cover and a top cover that cooperate to form a receiving cavity, the combination lock is installed inside the receiving cavity, and the top cover has a wheel opening at a position corresponding to the receiving cavity for the combination wheel to be exposed.

[0017] With the aforementioned further design, the front cover and bottom cover are fixedly connected by snaps or screws, forming a closed cavity that provides a stable installation environment for the combination lock. The combination lock, installed within this cavity, effectively protects it from external interference and damage while ensuring its privacy and security. Simultaneously, the wheel openings on the front cover allow the combination wheels to be easily exposed, facilitating password input and unlocking operations for the user.

[0018] A further feature of this invention is that the outer circumference of the combination wheel is provided with multiple circumferential slots, and the bottom cover is provided with elastic paddles corresponding to the positions of each combination wheel. One end of the elastic paddle is integrally connected to the bottom cover, and the other end is elastically pressed against the outer circumference of the combination wheel. When the combination wheel is rotated, the end of the elastic paddle alternately engages or disengages from each slot.

[0019] With the above-described further design, the slots on the outer circumference of the combination wheel and the elastic levers on the bottom cover work together to form a precise combination positioning mechanism. When the user rotates the combination wheel, the end of the elastic lever will alternately engage or disengage from each slot as the wheel rotates. This engaging and disengaging action not only provides the user with clear rotational feedback, but also allows the user to clearly perceive each position of the combination wheel.

[0020] A further feature of this invention is that the bottom cover and the top cover are detachably connected. After the bottom cover and the top cover are assembled, rotating holes are formed on both side walls. The two pivot ends of the hanging ring are respectively inserted into the rotating holes on both sides.

[0021] With the aforementioned further design, the detachable connection between the bottom cover and the top cover provides users with greater installation flexibility. After assembly, the rotating holes formed on the side walls of the bottom cover and the top cover provide stable support points for the pivot end of the hanging ring, ensuring the stability and reliability of the hanging ring during rotation.

[0022] A further feature of this invention is that both pivot ends are provided with stop portions, the stop portions being larger than the diameter of the rotating hole, so as to prevent the pivot ends from disengaging outward from the rotating hole.

[0023] With the aforementioned further design, the stop further enhances the stability of the connection between the hanging ring and the bottom and top covers. When the hanging ring rotates or is subjected to force, the stop effectively prevents the pivot end from accidentally slipping out of the rotating hole, thus ensuring the integrity of the entire structure and safety in use. Furthermore, this design facilitates the user's disassembly and assembly of the hanging ring during installation or maintenance.

[0024] A further feature of this invention is that the base has a recessed cavity with a top opening, and the opening and closing cover is rotatably accommodated in the recessed cavity; the two rods of the hanging ring are located on both sides of the opening and closing cover and can be movably accommodated in the recessed cavity.

[0025] With the above-mentioned further design, the recessed cavity design of the base provides a stable storage space for the opening and closing cover; at the same time, the two rods of the hanging ring are located on both sides of the opening and closing cover and can be movably stored in the recessed cavity. This design allows the hanging ring to fit tightly on the base when not in use, reducing space occupation and improving the overall portability and aesthetics. Attached Figure Description

[0026] Figure 1 This is a structural diagram of a specific embodiment of the present utility model;

[0027] Figure 2 This is an exploded view of a specific embodiment of the present utility model;

[0028] Figure 3This is an internal structural diagram of a specific embodiment of the present utility model;

[0029] Figure 4 This is an internal structural diagram of a specific embodiment of the present utility model;

[0030] Figure 5 This is a structural diagram of one side of the opening and closing cover according to a specific embodiment of this utility model;

[0031] Figure 6 This is a structural diagram of one side of the opening and closing cover according to a specific embodiment of this utility model;

[0032] Figure 7 This is a structural diagram of the opening and closing cover according to a specific embodiment of the present utility model;

[0033] Figure 8 This is an assembly diagram of the combination lock according to a specific embodiment of the present utility model;

[0034] Figure 9 This is a diagram showing the combination lock and the latch of a specific embodiment of the present utility model.

[0035] Figure 10 This is a structural diagram of a combination lock according to a specific embodiment of the present utility model;

[0036] Figure 11 This is a structural diagram of the springboard according to a specific embodiment of the present utility model;

[0037] Figure 12 This is a structural diagram of the bottom cover of a specific embodiment of the present utility model.

[0038] In the diagram: 1. Buckle; 2. Base; 3. Opening / closing cover; 4. Hanging ring; 5. Lock tongue; 6. Combination lock; 6. Combination wheel; 61. Gear slot; 611. Rotating shaft; 62. Inner wheel; 63. Notch; 631. Jumper; 64. Push block; 641. Gear lever; 642. Protrusion; 6421. Combination reset button; 65. Lock opening; 7. First elastic element; 8. Second elastic element; 9. Bottom cover; 31. Elastic lever; 311. Top cover; 32. Wheel opening; 321. Rotating hole; 33. Pivot end; 411. Stop part; 42. Rod body; 21. Cavity; 10. First shaft; 11. Second shaft. Detailed Implementation

[0039] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] like Figure 1-12As shown, this utility model discloses a combination latch lock, including a latch 1, a base 2, an opening and closing cover 3 rotatably connected to the base, and a hanging ring 4 movably connected to the opening and closing cover. The opening and closing cover and the base are rotatably connected via a first shaft 10. When the opening and closing cover 3 is in the latched position, the hanging ring 4 is hooked onto the latch 1. When the opening and closing cover 3 is in the open position, the hanging ring 4 is disengaged from the latch 1. The opening and closing cover 3 is provided with a locking tongue 5 and a combination lock 6 for controlling the locking state of the locking tongue. The combination wheel 61 of the combination lock 6 is externally... The opening and closing cover 3 is exposed on its surface. The outer wall of the opening and closing cover 3 is provided with an movable opening for the locking tongue to extend outward. The base 2 is provided with a locking slot 7 that is adapted to the locking tongue at the position of the movable opening. When the password is incorrect, the locking tongue 5 is pushed into the locking slot 7 to form a lock, so that the opening and closing cover 3 is limited to the latched position. When the password is correct, the locking tongue 5 is disengaged from the locking slot 7 under the action of the first elastic element 8 to achieve unlocking, so that the opening and closing cover 3 can be opened. The first elastic element is a compression spring, or it can be a rubber or silicone body. The combination lock 6 includes a pivot 62 located on the opening and closing cover, an inner wheel 63 rotatably sleeved on the pivot 62, and a combination wheel 61 that is linked and cooperates with the inner wheel 63. A step plate 64 is provided below the inner wheel 63. One end of the step plate 64 is connected to the opening and closing cover 3, and a push block 641 is provided on the other end. A stop bar 642 is provided on the step plate 64 at the position corresponding to the inner wheel 63. A protrusion 6421 is provided on the stop bar 642 facing the inner wheel 63. A notch 631 is provided on the inner wheel 63 for the protrusion to be inserted. The stop bar 642 and the inner wheel are connected. 63. The push block 641 and the locking tongue 5 are in inclined contact. Specifically, one end of the jump plate 64 is pivotally connected to the opening and closing cover 3 via the second shaft 11, and the other end is provided with a second elastic element 9 between it and the opening and closing cover. The second elastic element is a compression spring, which can drive the stop lever 642 upward to contact the inner wheel 63; or a torsion spring is sleeved on the second shaft, which drives the stop lever 642 upward to contact the inner wheel 63; or one end of the jump plate 64 is integrally connected to the opening and closing cover 3, and the stop lever 642 is an elastic structure.

[0041] When the password is incorrect, the protrusion disengages from the notch, the outer periphery of the inner wheel 63 pushes the jump plate 64 downward and swings downward, the push block 641 moves down and pushes the locking tongue 5 horizontally into the lock mouth 7 through the inclined surface;

[0042] When the password is correct, the springboard 64 swings upward, causing the protrusion to embed into the notch. The push block 641 then moves upward to release the pushing action on the latch 5, and the first elastic member 8 drives the latch 5 to slide horizontally out of the lock opening 7.

[0043] The combination lock 6 includes a password reset key 65, which is exposed on the bottom surface of the opening and closing cover 3. The password reset structure is a conventional design of existing combination locks, and therefore will not be described in detail.

[0044] Specifically, the opening and closing cover 3 is rotatably connected to the base 2 at one end near the buckle, and the locking tongue 5 is provided on the other end of the opening and closing cover 3. The opening and closing cover 3 includes a bottom cover 31 and a top cover 32 that cooperate to form a receiving cavity. The combination lock 6 is installed in the receiving cavity. The top cover 32 has a wheel opening 321 at the corresponding position of the receiving cavity for the combination wheel to be exposed. The outer circumference of the combination wheel 61 is provided with a plurality of position slots 611 at intervals. The bottom cover 31 is provided with an elastic lever 311 corresponding to each position of the combination wheel. One end of the elastic lever 311 is integrally connected to the bottom cover 31, and the other end elastically presses against the outer circumference of the combination wheel 61. When the combination wheel is rotated, the end of the elastic lever 311 alternately engages or disengages from each position slot 611. The bottom cover 31 and the top cover 32 are detachably connected by screws, buckles, etc. After assembly, the bottom cover 31 and the top cover 32 form rotating holes 33 on both side walls. The two pivot ends 41 of the hanging ring 4 are respectively inserted into the rotating holes 33 on both sides. Each pivot end 41 is provided with a stop part 411, which is larger than the diameter of the rotating hole 33 to prevent the pivot end 41 from detaching from the rotating hole 33. The base 2 is provided with a cavity 21 with a top opening, and the opening and closing cover 3 is rotatably received in the cavity 21. The two rods 42 of the hanging ring 4 are located on both sides of the opening and closing cover 3 and are movably received in the cavity 21.

[0045] The working principle of this utility model is as follows:

[0046] When the latch lock needs to be locked, the user presses down the opening cover 3 to the locked position, at which point the hanging ring 4 is hooked onto the latch 1.

[0047] If the password is entered incorrectly, the rotation of the password wheel 61 will not cause the notch 631 on the inner wheel 63 to align correctly with the protrusion 6421 on the stop lever 642. At this time, the outer circumference of the inner wheel 63 will always push against the jump plate 64 to keep swinging downward. The push block 641 at one end of the jump plate 64 will move downward accordingly and push the locking tongue 5 horizontally into the lock slot 7 of the base 2 through the inclined surface to form a locked state. The opening and closing cover 3 is limited to the latched position and cannot be opened.

[0048] When the user enters the correct password, the rotation of the password wheel 61 causes the inner wheel 63 to rotate to the correct position, so that the notch 631 engages with the protrusion 6421. At this time, the force of the second elastic element 9 drives the jump plate 64 to return to its original position and swing upward, causing the push block 641 to move upward and release the pushing action on the latch 5. Under the action of the first elastic element 8, the latch 5 slides horizontally out of the lock mouth 7, realizing the unlocked state. The user can then easily lift the opening cover 3 and remove the hanging ring 4 to disengage it from the latch 1, completing the unlocking action. The entire latch lock has a compact structure, is easy to operate, and has good anti-theft performance.

[0049] It should be noted that in the description of this utility model, all directional indicators (such as up, down, forward, backward, etc.) are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0050] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A combination latch lock, comprising a latch (1), a base (2), an opening / closing cover (3) rotatably connected to the base, and a hanging ring (4) movably connected to the opening / closing cover, wherein when the opening / closing cover (3) is in the latched position, the hanging ring (4) is engaged with the latch (1), and when the opening / closing cover (3) is in the open position, the hanging ring (4) disengages from the latch (1), characterized in that: The opening and closing cover (3) is provided with a locking tongue (5) and a combination lock (6) for controlling the locking state of the locking tongue. The combination wheel (61) of the combination lock (6) is exposed on the surface of the opening and closing cover (3). The outer wall of the opening and closing cover (3) is provided with an active opening for the locking tongue to extend outward. The base (2) is provided with a lock mouth (7) that is adapted to the locking tongue at the position corresponding to the active opening. When the password is wrong, the locking tongue (5) is pushed into the lock mouth (7) to form a lock, so that the opening and closing cover (3) is limited to the latched position. When the password is correct, the locking tongue (5) is disengaged from the lock mouth (7) under the action of the first elastic member (8) to achieve unlocking, so that the opening and closing cover (3) can be opened.

2. The latch lock according to claim 1, characterized in that: The combination lock (6) includes a pivot (62) located on the opening and closing cover, an inner wheel (63) rotatably sleeved on the pivot (62), and a combination wheel (61) that is linked and cooperates with the inner wheel (63). A jump plate (64) is provided below the inner wheel (63). One end of the jump plate (64) is connected to the opening and closing cover (3), and a push block (641) is provided on the other end. A stop bar (642) is provided on the jump plate (64) at the position corresponding to the inner wheel (63). A protrusion (6421) is provided on the stop bar (642) facing the inner wheel (63). A notch (631) is provided on the inner wheel (63) for the protrusion to be inserted. The stop bar (642) and the inner wheel (63) are kept close together. The push block (641) is in oblique contact with the lock tongue (5). When the password is incorrect, the protrusion comes out of the notch, the outer periphery of the inner wheel (63) pushes the jump plate (64) downward and swings downward, the push block (641) moves down and slides horizontally into the lock mouth (7) by pushing the lock tongue (5) through the inclined surface. When the password is correct, the jump plate (64) swings upward, causing the protrusion to embed into the notch, and the push block (641) moves upward to release the pushing action on the latch (5). The first elastic element (8) drives the latch (5) to slide horizontally out of the lock mouth (7).

3. The latch lock according to claim 2, characterized in that: One end of the springboard (64) is pivotally connected to the opening and closing cover (3), and the other end is provided with a second elastic element (9) between it and the opening and closing cover. The second elastic element (9) can drive the stop bar (642) upward to abut against the inner wheel (63).

4. The latch lock according to claim 1, 2, or 3, characterized in that: The opening and closing cover (3) is rotatably connected to the base (2) at one end near the buckle, and the locking tongue (5) is provided on the other end of the opening and closing cover (3).

5. The latch lock according to claim 1, 2, or 3, characterized in that: The combination lock (6) includes a password reset key (65), which is exposed on the bottom surface of the opening and closing cover (3).

6. The latch lock according to claim 1, 2, or 3, characterized in that: The opening and closing cover (3) includes a bottom cover (31) and a top cover (32) that cooperate to form a receiving cavity. The combination lock (6) is installed in the receiving cavity. The top cover (32) has a wheel opening (321) at the corresponding position of the receiving cavity for the combination wheel to be exposed.

7. The latch lock according to claim 6, characterized in that: The outer circumference of the password wheel (61) is provided with multiple gear slots (611) at intervals. The bottom cover (31) is provided with elastic levers (311) corresponding to the positions of each password wheel. One end of the elastic lever (311) is integrally connected to the bottom cover (31), and the other end is elastically pressed against the outer circumference of the password wheel (61). When the password wheel is rotated, the end of the elastic lever (311) alternately engages or disengages from each gear slot (611).

8. The latch lock according to claim 6, characterized in that: The bottom cover (31) and the top cover (32) are detachably connected. After the bottom cover (31) and the top cover (32) are assembled, rotating holes (33) are formed on both side walls. The two pivot ends (41) of the hanging ring (4) are respectively inserted into the rotating holes (33) on both sides.

9. The latch lock according to claim 8, characterized in that: Both pivot ends (41) are provided with a stop (411), which is larger than the diameter of the rotating hole (33) to prevent the pivot end (41) from disengaging from the rotating hole (33).

10. The latch lock according to claim 1, 2, or 3, characterized in that: The base (2) has a recess (21) with a top opening, and the opening and closing cover (3) is rotatably housed in the recess (21); the two rods (42) of the hanging ring (4) are located on both sides of the opening and closing cover (3) and can be movably housed in the recess (21).

Images