A combination lock quickly installable to a bag

Abstract

The utility model discloses a password lock can be quickly installed to the luggage, password lock includes bottom shell and face shell, is equipped with the first clamping part on the bottom shell, is equipped with the second clamping part on the face shell, is equipped with the first limit piece on the bottom shell, is equipped with the second limit piece on the face shell, the case shell of the luggage is clamped in the clamping space between the first clamping part of bottom shell and the second clamping part of face shell, when the first limit piece and second limit piece joint cooperation fixed connection, namely, the limit post is inserted into the limit hole through the limit through -hole, and moves to the limit card hole and is fixed with its joint, make the first clamping part and the second clamping part mutually close, make the case shell of the luggage lock in the first clamping part and the second clamping part, and then can fix and install the password lock to the luggage, realize the quick, convenient installation of password lock.

Description

Technical Field

[0001] This utility model relates to the field of combination lock installation technology, and in particular to a combination lock that can be quickly installed into a bag. Background Technology

[0002] Typical travel bags usually have zippers for closure, with each zipper having a zipper pull and a zipper tab at the top. The bags often have a combination lock at the zipper end, with a latch corresponding to the zipper tab. The combination lock uses a hook inside the latch to lock the zipper tab, thus securing the bag.

[0003] Combination locks are typically fixedly connected to bags. The common method of connection is using screws, rivets, or other fasteners, making installation and disassembly quite cumbersome. When a combination lock is functionally damaged, specialized tools are needed to disassemble the fasteners connecting the lock and the bag before replacement. Damage to the threaded holes or fixing holes on the bag increases the difficulty of installing the combination lock, and may even render the bag unusable, hindering normal use. Utility Model Content

[0004] The purpose of this utility model is to disclose a combination lock that can be quickly installed on a bag, which simplifies the connection structure between the combination lock and the bag, ensuring the installation strength of the combination lock, and allowing the combination lock to be quickly installed or removed from the bag.

[0005] To achieve the above objectives, this utility model discloses a combination lock that can be quickly installed on a bag. The combination lock, when installed on a bag, includes:

[0006] The bottom shell has an outwardly extending first clamping part that fits against the inner wall of the bag shell; the bottom shell also has a first limiting member.

[0007] The outer shell has a second clamping part at a position corresponding to the first clamping part. The second clamping part fits against the outer wall of the bag shell and cooperates with the first clamping part to form a clamping space for clamping the bag shell. The outer shell has a second limiting member that engages and is fixedly fitted with the first limiting member. The mutual engagement of the first limiting member and the second limiting member causes the first clamping part and the second clamping part to clamp the bag shell together.

[0008] In the first limiting member and the second limiting member, one is a limiting hole and the other is a limiting post; the limiting hole includes a limiting locking hole and a limiting through hole, the limiting locking hole and the limiting through hole are connected; the limiting post is inserted into the limiting hole through the limiting through hole, and moves into the limiting locking hole and engages with the limiting locking hole.

[0009] As an optional implementation, the first limiting member is the limiting hole, and the second limiting member is the limiting post.

[0010] As an optional implementation, the limiting post includes a post body and a locking head, the locking head being connected to the face shell through the post body; the post body passes through the limiting through hole and moves into the limiting locking hole, so that the locking head engages with the limiting locking hole.

[0011] As an optional implementation, the diameter of the limiting card hole is smaller than the diameter of the limiting through hole; the axial cross-sectional dimension of the card head is larger than the axial cross-sectional dimension of the column and the diameter of the limiting card hole, but smaller than the diameter of the limiting through hole; the axial cross-sectional dimension of the column is smaller than the diameter of the limiting card hole.

[0012] As an optional implementation, the edge region of the limiting hole is provided with a boss, which increases the thickness of the edge of the limiting hole.

[0013] As an optional implementation, the connection between the limiting hole and the limiting through hole is provided with a protrusion that makes it difficult for the limiting post to slide from the limiting hole to the limiting through hole.

[0014] As an optional implementation, the limiting hole is provided with a first chamfer, the limiting through hole is provided with a second chamfer, and the transition connection between the first chamfer and the second chamfer is provided with a protrusion that makes it difficult for the limiting post to slide from the limiting hole to the limiting through hole.

[0015] As an optional implementation, the front side of the limiting hole faces the insertion direction of the limiting post, the back side of the limiting hole is the side opposite to the front side of the limiting hole, and the protrusion is located on the back side of the limiting hole.

[0016] As an optional implementation, the height of the top surface of the protrusion is higher than the chamfered surface of the first chamfer and the chamfered surface of the second chamfer.

[0017] As an optional implementation, the angle of the first chamfer is smaller than the angle of the second chamfer.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] (1) When installing a combination lock on a bag, clamp the bag shell in the clamping space between the first clamping part of the bottom shell and the second clamping part of the top shell. After the first limiting part and the second limiting part are engaged and fixedly connected, that is, the limiting pin is inserted into the limiting hole through the limiting through hole and moves into the limiting card hole and engages and is fixed therewith, so that the first clamping part and the second clamping part are close to each other, and the bag shell is locked between the first clamping part and the second clamping part, thereby fixing the combination lock onto the bag, realizing the quick and convenient installation of the combination lock. When removing the combination lock from the bag, apply forces in opposite directions to the bottom shell and the top shell, so that the limiting pin slides from the limiting card hole to the limiting through hole. At this time, the limiting pin can pass through the limiting through hole, so that the first clamping part and the second clamping part separate from each other, that is, the bottom shell and the top shell separate, thereby quickly realizing the removal of the combination lock from the bag shell.

[0020] (2) When the first limiting member and the second limiting member are engaged, the first clamping part and the second clamping part approach each other. After the limiting post is engaged in the limiting hole, the front shell and the bottom shell deform due to their proximity, making the first clamping part and the second clamping part closer together. This results in the first clamping part and the second clamping part having a greater clamping force on the outer shell of the bag, thus improving the strength of the combination lock and the bag assembly structure. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the combination lock disclosed in this embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the combination lock disclosed in this embodiment of the utility model;

[0024] Figure 3 yes Figure 2 A magnified view of point A in the image;

[0025] Figure 4 This is an assembly diagram of the password component, lock control component, lock hook component, and cover plate disclosed in this utility model embodiment;

[0026] Figure 5 yes Figure 2 A magnified view of section B in the image;

[0027] Figure 6 This is a schematic diagram of the bottom shell structure disclosed in an embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the cryptographic component disclosed in an embodiment of this utility model;

[0029] Figure 8 This is a cross-sectional view of the wheel axle disclosed in an embodiment of this utility model;

[0030] Figure 9 This is a schematic diagram of the structure of the cipher wheel disclosed in this embodiment of the utility model;

[0031] Figure 10 This is a cross-sectional view of the faceplate disclosed in an embodiment of this utility model;

[0032] Figure 11 This is an assembly diagram of the lock control assembly and lock hook assembly disclosed in this embodiment of the utility model;

[0033] Figure 12 This is a cross-sectional view of the lock control component disclosed in an embodiment of this utility model;

[0034] Figure 13 This is an assembly drawing of the top block and cover plate disclosed in an embodiment of this utility model;

[0035] Explanation of key figure labels:

[0036] 1. Bottom shell; 11. First clamping part; 12. Bottom compartment; 13. Limiting hole; 131. Limiting locking hole; 132. Limiting through hole; 133. First chamfer; 134. Second chamfer; 135. Boss; 136. Protrusion; 2. Top shell; 21. Second clamping part; 211. Wheel opening; 212. Positioning opening; 213. Locking opening; 22. Top compartment; 221. Locking hole; 222. Protruding ridge; 3. Cover plate; 31. Limiting post; 311. Post; 312. Locking head; 32. Snap fastener; 33. Top block; 331. Compression spring; 332. Positioning post; 4. Password assembly; 41. Wheel axle; 411. First spring; 4 12. Abutment block; 413. Annular groove; 414. Slide groove; 42. Combination wheel; 421. Display wheel; 422. Adjustment wheel; 423. Groove; 424. Protruding tooth; 425. Inner protrusion; 426. Slot; 43. Adjustment assembly; 431. Adjustment block; 432. Adjustment switch; 433. Button; 44. Elastic sheet; 441. Spring sheet; 45. Slope; 5. Lock control assembly; 51. Push mechanism; 511. Hook plate; 52. Lock cylinder; 521. Telescopic piece; 53. Lock block; 531. Inner groove; 54. Slot; 6. Lock hook assembly; 61. First lock hook; 62. Second lock hook; 63. Second spring. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0039] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0040] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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 an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0041] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0042] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0043] Please see Figures 1 to 3This application provides a combination lock that can be quickly installed onto a bag. The lock is mounted on the bag's outer shell and includes a bottom shell 1 and a top shell 2. The bottom shell 1 has an outwardly extending first clamping portion 11 that fits against the inner wall of the bag's outer shell. The bottom shell 1 also has a first limiting member. The top shell 2 has a second clamping portion 21 corresponding to the first clamping portion 11. The second clamping portion 21 fits against the outer wall of the bag's outer shell, and the second clamping portion 21 cooperates with the first clamping portion 11 to form a clamping space for clamping the bag's outer shell. The top shell 2 also has a second limiting member that engages and is fixedly fitted with the first limiting member.

[0044] Typically, mounting holes are pre-drilled on the case shell for the combination lock. The bottom shell 1 is inserted into these holes, allowing the first clamping part 11 to fit against the inner wall of the case shell. Then, the second clamping part 21 on the front shell 2, which houses the combination lock body, fits against the outer wall of the case shell. The interlocking action of the first and second limiting members brings the first clamping part 11 and the second clamping part 21 closer together, clamping the case shell tightly. This allows for quick assembly of the combination lock onto the case. This simplifies the connection structure between the combination lock and the case, improving the efficiency of installing or removing the combination lock.

[0045] In the first and second limiting components, one is a limiting hole 13 and the other is a limiting post 31. The limiting hole 13 includes a limiting locking hole 131 and a limiting through hole 132, and the limiting locking hole 131 communicates with the limiting through hole 132. The limiting post 31 is inserted into the limiting hole 13 through the limiting through hole 132, moves into the limiting locking hole 131, and engages and is fixed with the limiting locking hole 131.

[0046] In this embodiment, the first limiting member is the limiting hole 13, and the second limiting member is the limiting post 31. The limiting post 31 on the front shell 2 is aligned with the limiting hole 13 on the bottom shell 1 for assembly, so that the bottom shell 1 and the front shell 2 stably clamp and fix the bag shell.

[0047] In other embodiments, the first limiting member can be a limiting post 31, and the second limiting member can be a limiting hole 13; or the first limiting member can be a combination of multiple different limiting posts 31 and multiple different limiting holes 13, and the second limiting member corresponding to the first limiting member can be a combination of multiple different limiting holes 13 and multiple different limiting posts 31. In all the above embodiments, the bottom shell 1 and the top shell 2 are stably clamped onto the case shell of the bag through the cooperation of the limiting posts 31 or the limiting holes 13.

[0048] In some embodiments, see Figure 2As shown, the limiting post 31 includes a post body 311 and a locking head 312. The locking head 312 is connected to the face shell 2 through the post body 311. When the limiting post 31 is fixedly connected to the limiting hole 13, the post body 311 passes through the limiting through hole 132 and moves into the limiting locking hole 131, so that the locking head 312 is locked and fixedly connected to the limiting locking hole 131. The relative position of the face shell 2 and the bottom shell 1 can be initially determined by the cooperation between the post body 311 and the limiting through hole 132. When the post body 311 moves from the limiting through hole 132 to the limiting locking hole 131, the locking head 312 is locked into the limiting locking hole 131, thereby completing the locking of the limiting post 31 and the limiting hole 13. When it is necessary to remove the combination lock from the bag, simply separate the bottom shell 1 and the top shell 2. Just push the top shell 2 to make the pin 311 slide out from the limiting hole 131 into the limiting through hole 132, so that the limiting pin 31 can be disengaged from the limiting hole 13.

[0049] In some embodiments, the diameter of the limiting hole 131 is smaller than the diameter of the limiting through hole 132, the axial cross-sectional dimension of the locking head 312 is larger than the axial cross-sectional dimension of the column 311 and smaller than the diameter of the limiting through hole 132, and the axial cross-sectional dimension of the column 311 is smaller than the diameter of the limiting hole 131. During the assembly of the bottom shell 1 and the top shell 2, both the limiting post 31 and the locking head 312 can pass through the limiting through hole 132. When the column 311 is transferred into the limiting hole 131, because the axial cross-sectional dimension of the locking head 312 is larger than the diameter of the limiting hole 131, the locking head 312 is locked outside the limiting hole 131, thus realizing the locking of the limiting post 31 into the limiting hole 13.

[0050] In some embodiments, see Figure 2 and Figure 3 As shown, a boss 135 is provided on the edge area of ​​the limiting hole 13. The front side of the limiting hole 13 faces the insertion direction of the limiting post 31, and the back side of the limiting hole 13 is the side opposite to the front side of the limiting hole 13. The boss 135 can be provided on the front side, the back side, or both sides of the limiting hole 13. The boss 135 increases the thickness of the edge of the limiting hole 13, thereby improving the strength of the edge contour of the limiting hole 13. After repeated installation or removal of the combination lock and the case, the stability of the shape of the limiting hole 13 is ensured, and the service life of the limiting hole 13 is improved.

[0051] In some embodiments, a protrusion 136 is provided at the connection between the limiting hole 131 and the limiting through hole 132 to prevent the limiting post 31 from sliding out of the limiting hole 131 to the limiting through hole 132. After the limiting post 31 is inserted into the limiting hole 131, under the action of the protrusion 136, the limiting post 31 tends to remain within the limiting hole 13, making it difficult for the limiting post 31 to slide out of the limiting hole 131, thereby ensuring the stability of the engagement between the limiting post 31 and the limiting hole 13.

[0052] In this embodiment, see Figure 3As shown, the protrusion 136 is located on the back of the limiting hole 13. The user needs to use a relatively large force to drive the limiting post 31 to slide past the position of the protrusion 136. When the limiting post 31 is inserted into the limiting hole 131 without external force, the limiting post 31 is stably locked in the limiting hole 131 due to the obstruction of the protrusion 136.

[0053] In some embodiments, the limiting hole 131 is provided with a first chamfer 133, and the limiting through hole 132 is provided with a second chamfer 134. A protrusion 136 is provided at the transition joint between the first chamfer 133 and the second chamfer 134 to make it difficult for the limiting post 31 to slide from the limiting hole 131 to the limiting through hole 132. The first chamfer 133 and the second chamfer 134 can improve the smoothness of the limiting post 31 sliding from the limiting through hole 132 to the limiting hole 131.

[0054] In some embodiments, see Figure 5 As shown, the protrusion 136 curves upward away from the limiting hole 13, making the height of the top surface of the protrusion 136 higher than the chamfered surfaces of the first chamfer 133 and the second chamfer 134. This increases the difficulty for the limiting post 31 to slide out after being inserted into the limiting hole 131, further improving the stability of the engagement between the limiting post 31 and the limiting hole 13.

[0055] In some embodiments, the angle of the first chamfer 133 is smaller than the angle of the second chamfer 134. When the limiting post 31 slides from the limiting through hole 132 to the limiting card hole 131, under the action of the smaller angle of the first chamfer 133, the card head 312 is subjected to a force away from the limiting hole 13, which increases the force between the bottom shell 1 and the top shell 2 in the clamping direction, causing the bottom shell 1 and the top shell 2 to deform further, increasing the clamping force between the first clamping part 11, the second clamping part 21 and the case shell, and ultimately improving the strength of the assembly structure of the combination lock and the case.

[0056] In some embodiments, see Figure 2 As shown, the bottom shell 1 includes a bottom compartment 12, the top of which is open and has an integrated first clamping part 11 extending along the outside of the bottom compartment 12. Multiple limiting holes 13 are sealed on the bottom surface of the bottom compartment 12 away from the first clamping part 11, and the multiple limiting holes 13 are evenly distributed on the bottom surface of the bottom compartment. The top shell 2 includes a top compartment 22, the top of which has an integrated second clamping part 21, and a removable cover plate 3 is provided on the bottom surface of the top compartment 22 away from the second clamping part 21. Both the top compartment 22 and the cover plate 3 are located inside the bottom compartment 12, and limiting posts 31 are provided on the bottom surface of the cover plate 3 corresponding to the positions of the limiting holes 13. See also Figure 4 As shown, the limiting post 31 includes a post body 311 and a locking head 312, and the locking head 312 is integrally connected to the cover plate 3 through the post body 311.

[0057] See Figure 6As shown, on the side of the cover plate 3 located inside the top compartment 22, along its length, are sequentially arranged a combination key assembly 4, a locking control assembly 5, and a locking hook assembly 6. The combination key assembly 4 and the locking control assembly 5 are in movable contact. The locking control assembly 5 is provided with a hook plate 511 that engages with the locking hook assembly 6. The cover plate 3 is provided with a top block 33 that is elastically connected to the locking hook assembly 6 at the corresponding position. The edge of the cover plate 3 is provided with multiple symmetrically distributed buckles 32. The face shell 2 is provided with locking holes 221 that engage with the buckles 32. The cover plate 3 is provided with multiple evenly distributed screws that pass through the cover plate 3 and are screwed into the face shell 2.

[0058] When the combination lock component 4 contacts the locking control component 5 and the locking control component 5 contacts the lock hook component 6, the position of the lock hook component 6 remains fixed, meaning the combination lock is in the locked state. Inserting a key that matches the locking control component 5 causes the locking control component 5 to rotate, creating space between the locking control component 5 and the combination lock component 4, allowing the lock hook component 6 to move laterally. When the lock hook component 6 moves away from the top block 33 along the length of the cover plate 3 under the action of the hook plate 511, the user can unlock the combination lock using the key without knowing the correct combination.

[0059] Further, see Figure 7 Figure 9 As shown, the combination lock component 4 includes an axle 41 and combination wheels 42. One end of the axle 41 is provided with a fixedly connected abutment 412, which contacts the lock control component 5. The other end is provided with a code adjustment component 43, through which the axle 41 can pass. Multiple combination wheels 42 are arranged axially, and the end faces of adjacent combination wheels 42 are in contact with each other.

[0060] The axle 41 has an annular groove 413 at the position corresponding to the combination wheel 42, allowing the combination wheel 42 to rotate circumferentially relative to the axle 41. Each combination wheel 42 can rotate independently around the axle 41 by engaging with the annular groove 413. The outer wall of the axle 41 has a sliding groove 414 along its length, allowing the combination wheel 42 to move axially relative to the axle 41. The sliding groove 414 passes through the annular groove 413. When the stop block 412 contacts the lock control assembly 5 and the lock control assembly 5 contacts the lock hook assembly 6, the combination is locked. When the user rotates each combination wheel 42 to a suitable position, the axle 41 regains its axial freedom through the engagement of the combination wheel 42 with the sliding groove 414, allowing it to move axially relative to the combination wheel 42. This causes the axle 41 to move away from the lock control assembly 5, giving the lock control assembly 5 space to move away from the lock hook assembly 6, allowing the user to unlock the combination lock by entering the correct combination.

[0061] In some embodiments, the cover plate 3 is provided with an elastic piece 44 at the position corresponding to the password wheel 42, and the elastic piece 44 is provided with different spring pieces 441 at the positions corresponding to different password wheels 42. The outer wall of the display wheel 421 is provided with a plurality of slots 426 that cooperate with the spring pieces 441 in the circumferential direction, and the plurality of slots 426 are spaced at the same interval.

[0062] When the spring 441 is inserted into the slot 426, it can determine the circumferential position of the combination wheel 42. When the user rotates the combination wheel 42, the spring 441 undergoes elastic deformation, allowing the combination wheel 42 to continue rotating. Different springs 441 act on different combination wheels 42 to maintain the stability of the user's input password.

[0063] In some embodiments, the code wheel 42 includes a display wheel 421 and a code wheel 422. The inner sidewall of the display wheel 421 is provided with a plurality of evenly spaced grooves 423 in the circumferential direction, and the outer peripheral wall of the code wheel 422 is provided with protruding teeth 424 that mate with the grooves 423. The inner wall of the code wheel 422 is provided with an inner protrusion 425.

[0064] When the inner protrusion 425 engages with the annular groove 413, each combination wheel 42 can rotate independently relative to the axle 41. When the user enters the correct password, causing the inner protrusion 425 of multiple combination wheels 42 to engage with the slide groove 414 simultaneously, the axle 41 can move axially relative to the combination wheels 42, thereby unlocking the combination lock.

[0065] In some embodiments, the coding assembly 43 includes a coding block 431 and a coding switch 432, both of which have mutually slidingly engaging slopes 45. A first spring 411 is provided between the coding wheel 422 near the abutment block 412 and the abutment block 412, with one end of the first spring 411 contacting the abutment block 412 and the other end contacting the coding wheel 422; the coding wheel 422 near the coding block 431 is in contact with the coding block 431.

[0066] The top of the code switch 432 is equipped with a button 433. When the correct password of the password component 4 needs to be changed, the user first enters the correct password, so that the wheel axle 41 maintains the upward degree of freedom relative to the axis 41 of each password wheel 42. When the user presses the button 433, the code switch 432 applies downward pressure to the code block 431. Under the action of the slope 45, the code block 431 is subjected to a lateral component force, which causes the code block 431 to squeeze the code wheel 422 to move relative to the axis 41 of the display wheel 421. This causes the convex tooth 424 and the groove 423 to be misaligned axially, and the display wheel 421 can rotate circumferentially relative to the code wheel 422. At this time, the first spring 411 is compressed. The user can rotate the display wheel 421 to the specified number combination. After the external force applied to the button 433 is stopped, under the elastic force of the first spring 411, the axis 41 of the dial wheel 422 moves upward and approaches the display wheel 421, so that the tooth 424 re-engages with the groove 423, and the dial wheel 422 returns to its relative fixed position with the display wheel 421 in the circumferential direction. Finally, the dial switch 432 returns to its initial position.

[0067] In some embodiments, see Figures 10 to 12 As shown, the locking assembly 5 includes a pusher 51, a lock cylinder 52, and a locking block 53. The pusher 51 has locking blocks 54 on both opposite sides. The inner wall of the faceplate 2 has protruding ribs 222 corresponding to the locking blocks 54, allowing the pusher 51 to move along the length of the faceplate 2. The pusher 51 houses the lock cylinder 52, and the bottom of the lock cylinder 52 has a locking block 53. The locking block 53 has an inner groove 531 through which the lock cylinder 52 passes, and the sidewall of the inner groove 531 in the width direction fits against the lock cylinder 52. The two ends of the locking block 53 in the length direction fit against the combination key assembly 4 and the lock hook assembly 6, respectively.

[0068] After the user enters the correct password, applying external force to the pusher 51, with the cooperation of the limiting post 31 and the protrusion 222, allows the pusher 51 to move away from the lock hook assembly 6 along the length of the face shell 2. Driven by the pusher 51, the lock block 53 moves synchronously with the lock cylinder 52 and the pusher 51, moving the lock block 53 away from the lock hook assembly 6, thus unlocking the combination lock. The lock cylinder 52 has multiple elastically connected telescopic plates 521 inside. When the lock control assembly 5 is locked, the telescopic plates 521 pop out of the lock cylinder 52 and embed into the pusher 51, preventing the lock cylinder 52 from rotating freely relative to the pusher 51. When the user inserts a key that matches the lock cylinder 52, the telescopic plates 521 retract into the lock cylinder 52, allowing the lock cylinder 52 to rotate relative to the pusher 51. When the lock block 53 rotates with the lock cylinder 52, sufficient space is left between the lock block 53 and the combination assembly 4. Applying external force to the pusher 51 causes the pusher 51 to pull the lock hook assembly 6, thus unlocking the combination lock directly with the key.

[0069] In some embodiments, the locking hook assembly 6 includes a first locking hook 61 and a second locking hook 62, which are slidably connected in the length direction of the cover plate 3, and a second spring 63 is provided between the first locking hook 61 and the second locking hook 62 and the locking control assembly 5.

[0070] Both the first locking hook 61 and the second locking hook 62 independently perform the locking function. When the combination lock is locked, the first locking hook 61 and the second locking hook 62 remain relatively fixed to the cover plate 3. When the combination lock is unlocked, both the first locking hook 61 and the second locking hook 62 can move relative to the cover plate 3. Under the action of the second spring 63, the first locking hook 61 and the second locking hook 62 tend to maintain the locked state.

[0071] In some embodiments, the cover plate 3 is provided with a top block 33 at the position below the first locking hook 61 and the second locking hook 62; the bottom of the cover plate 3 is provided with multiple symmetrically distributed positioning posts 332 at the bottom of the top block 33, and the positioning posts 332 are provided with compression springs 331, the two ends of the compression springs 331 being connected to the cover plate 3 and the top block 33 respectively.

[0072] The bottom of the top block 33 has a hole for engaging the positioning post 332, and portions of the compression spring 331 and the positioning post 332 are located within the hole. Under the action of the compression spring 331, the top block 33 can reciprocate along the length of the positioning post 332. The first locking hook 61 and the second locking hook 62 engage with different top blocks 33 to lock the zipper piece. The contact surface between the first locking hook 61 or the second locking hook 62 and the zipper piece is inclined. As the zipper piece approaches the first locking hook 61 or the second locking hook 62, the first locking hook 61 or the second locking hook 62 will move towards the locking mechanism, causing the zipper piece to fall into the gap between the first locking hook 61 or the second locking hook 62 and the top block 33, i.e., the locked position of the zipper piece. Under the reset action of the first spring 411 and the compression spring 331, the first locking hook 61 or the second locking hook 62 and the top block 33 both tend to maintain the locked state.

[0073] In some embodiments, see Figure 13 As shown, the second clamping part 21 is provided with wheel openings 211 at the positions corresponding to each combination wheel 42, a positioning opening 212 at the position corresponding to the position of the lock control component 5, and a lock opening 213 at the positions corresponding to the first lock hook 61 and the second lock hook 62.

[0074] The second clamping part 21 cooperates with the cover plate 3 to seal the main components of the combination lock, such as the combination lock component 4, the lock control component 5, and the lock hook component 6, within the top compartment 22. The user can rotate the combination wheel 42 through the wheel opening 211; the lock control component 5 is fixed in the position of the positioning opening 212, making it convenient for the user to insert the key into the lock cylinder 52; the user can easily pass the zipper tab through the lock opening 213 to lock the zipper tab with the lock hook.

[0075] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A combination lock that can be quickly installed on a bag, characterized in that, The combination lock includes: The bottom shell has an outwardly extending first clamping portion and a first limiting member. The outer shell has a second clamping part at a position corresponding to the first clamping part. The second clamping part cooperates with the first clamping part to form a clamping space for clamping the case shell. The outer shell has a second limiting member that engages and is fixedly fitted with the first limiting member. The mutual engagement of the first limiting member and the second limiting member causes the first clamping part and the second clamping part to clamp the case shell together. In the first limiting member and the second limiting member, one is a limiting hole and the other is a limiting post; the limiting hole includes a limiting locking hole and a limiting through hole, the limiting locking hole and the limiting through hole are connected; the limiting post is inserted into the limiting hole through the limiting through hole, and moves into the limiting locking hole and engages with the limiting locking hole.

2. The combination lock according to claim 1, characterized in that, The first limiting member is the limiting hole, and the second limiting member is the limiting post.

3. The combination lock according to claim 1, characterized in that, The limiting post includes a post body and a locking head. The locking head is connected to the face shell through the post body. The post body passes through the limiting through hole and moves into the limiting locking hole, so that the locking head engages with the limiting locking hole.

4. The combination lock according to claim 3, characterized in that, The diameter of the limiting hole is smaller than the diameter of the limiting through hole; the axial cross-sectional dimension of the clamp head is larger than the axial cross-sectional dimension of the column and the diameter of the limiting hole, but smaller than the diameter of the limiting through hole; the axial cross-sectional dimension of the column is smaller than the diameter of the limiting hole.

5. The combination lock according to any one of claims 1-4, characterized in that, The edge region of the limiting hole is provided with a boss, which increases the thickness of the edge of the limiting hole.

6. The combination lock according to any one of claims 1-4, characterized in that, The connection between the limiting hole and the limiting through hole is provided with a protrusion that makes it difficult for the limiting post to slide from the limiting hole to the limiting through hole.

7. The combination lock according to any one of claims 1-4, characterized in that, The limiting hole has a first chamfer, the limiting through hole has a second chamfer, and the transition connection between the first chamfer and the second chamfer has a protrusion that makes it difficult for the limiting post to slide from the limiting hole to the limiting through hole.

8. The combination lock according to claim 6, characterized in that, The front side of the limiting hole faces the insertion direction of the limiting post, and the back side of the limiting hole is the side opposite to the front side of the limiting hole. The protrusion is located on the back side of the limiting hole.

9. The combination lock according to claim 7, characterized in that, The height of the top surface of the protrusion is higher than the chamfered surface of the first chamfer and the chamfered surface of the second chamfer.

10. The combination lock according to claim 7, characterized in that, The angle of the first chamfer is smaller than the angle of the second chamfer.

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