Card inserting type lock convenient for number changing

Abstract

The utility model relates to the technical field of luggage locks, in particular to a card inserting type lock convenient for number changing, which comprises a lock shell and a locking mechanism positioned in the lock shell, the locking mechanism comprises a supporting seat fixed in the lock shell, and a limiting column and a marble column are arranged in each supporting hole of the supporting seat in a penetrating manner; the locking mechanism further comprises an unlocking assembly installed on the supporting base in a sliding mode, the unlocking assembly comprises an unlocking plate and a push button which are fixed, the unlocking plate is provided with a plurality of special-shaped holes allowing the limiting columns to penetrate through, the limiting columns are provided with receding parts and stopping parts, and the stopping parts are embedded into the special-shaped holes and can stop the unlocking plate from moving to achieve locking. When the receding part is embedded into the special-shaped hole, blocking on the unlocking plate is relieved, and unlocking is achieved; a concave-convex embedded structure is arranged at the end, abutting against the pin tumbler column, of the limiting column, and the end of the limiting column is exposed out of the lock shell to be operated and rotated so that the end of the limiting column can be adjusted to be embedded into or not embedded into the pin tumbler column. Compared with the prior art, the structure is simple, manufacturing and implementation are easy, and production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage locks, in particular to a card-insertion lock which is convenient for changing numbers. Background Art

[0002] Luggage locks are commonly used locks on suitcases, trolley cases and other luggage. Luggage and luggage are currently closed with zippers, and the zipper head is provided with a keyhole that cooperates with the luggage lock. There is currently a type of luggage lock that is a long lock shell as a whole, with a push block set at one end of the lock shell, a password lock in the middle, and a zipper head insertion opening at the other end. A slider movable part is provided in the lock shell to lock the zipper head. When the password is entered correctly, a push rod in the password lock can slide relative to the lock shell, and the push block pushes the push rod, and the push rod pushes the slider movable part to disengage the slider movable part from the zipper head.

[0003] Most locking mechanisms are code wheel mechanisms and key lock mechanisms, with a small number of them using card-insertion unlocking. For example, the Chinese patent document with announcement number CN202007573U discloses a composite card-insertion luggage lock. When opening a case, the number plate is inserted, and the depth of the engagement between the pressing portion and the keyhole is different to achieve different displacements of the door lock pin, so that the locking rod is exactly moved to the corresponding insertion position. The pin mechanism can drive the paddle to move, and the paddle drives the knob to rotate through the control member. The knob drives the second fork pressing on the top rod to rotate. Pressing the button to press the top rod to move, thereby separating the locking rod from the locking hole on the suitcase and opening the case; inserting a special tool, using the special tool to rotate the lock core, and the lock core drives the lever, which drives the lever to rotate, and the knob drives the second fork pressing on the top rod to rotate. Pressing the button to press the top rod to move, thereby separating the locking rod from the locking hole on the suitcase and opening the case. Through the above two methods, the owner of the case and specific personnel can easily open the case.

[0004] Another example is a composite luggage lock disclosed in Chinese patent publication number CN102747905A. The lock comprises an upper shell and a bottom cover, wherein the upper shell is formed with a card slot and a card hole, and the bottom cover is mounted with a bottom plate. A storage space is formed between the upper shell and the bottom plate, which accommodates: a plurality of card points fixed to the card point slot, which is engaged by a slider that slides with the displacement of the unlocking card; during the sliding process, the slider drives the transmission shaft to move, thereby driving the protrusion of the lock gear switching block to move, thereby rotating the lock gear switching block to achieve the switching between unlocking and locking states; at the same time, the lock gear switching block can also be rotated by a special key. The lock can be opened by using the unlocking card or by rotating the lock cylinder by a special key, providing flexible opening methods to meet specific needs. At the same time, the cooperation of the number-changing card slot, the card points, and the unlocking card can also realize a numbering function.

[0005] The above-mentioned composite luggage lock is aimed at the structure of unlocking by inserting a card. Although numbering can be achieved through the number-changing card slot piece, its structure is complex and the manufacturing cost is high. Utility Model Content

[0006] In view of all or part of the above technical problems in the prior art, the utility model provides a card-insertion lock that is convenient for changing numbers.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] Provided is a card-insertion lock for convenient number change, comprising a lock housing and a locking mechanism located in the lock housing, the locking mechanism comprising a support seat fixed in the lock housing, and the lock housing having a card insertion slot for inserting an external unlocking card;

[0009] The support seat is provided with a plurality of support holes, each of which is provided with a limit column and a pin column. A spring is provided at the support seat to apply force to the limit column, so that the front end of the limit column keeps pushing the pin column into the card slot;

[0010] The locking mechanism also includes an unlocking assembly slidably mounted on the support seat, which includes an unlocking plate and a push knob fixed to each other, and the push knob extends out of the lock shell; the unlocking plate is provided with a plurality of special-shaped holes for the limit posts to pass through, and the limit posts are provided with a giving portion and a stop portion, and the stop portion is embedded in the special-shaped hole to prevent the unlocking plate from moving to achieve locking, and the giving portion is embedded in the special-shaped hole to release the blockage of the unlocking plate to achieve unlocking;

[0011] The end portion where the limiting post abuts against the pin column is provided with a concave-convex embedded structure, the rear end portion of the limiting post is connected to a number-changing piece exposed outside the lock housing, the number-changing piece and the limiting post are mutually limited in the circumferential direction so as to rotate together, and can be relatively displaced in the axial direction; in a natural state, the number-changing piece is limited in the rotation direction, and an external force drives the number-changing piece to displace axially relative to the limiting post to release the restriction and rotate, so as to adjust whether the end portion of the limiting post is embedded in or not embedded in the pin column;

[0012] Inserting the unlocking card into the card slot, the alignment / staggering of the positioning hole of the unlocking card with the pin column, and whether the limit column is embedded in the pin column jointly determine whether the stop portion or the yield portion is embedded in the special-shaped hole.

[0013] As a further optional solution, the matching hole of the unlocking card is aligned with the pin column, and when the end of the limiting column is embedded in the pin column, the stop portion is embedded in the special-shaped hole to achieve locking.

[0014] As a further optional solution, the special-shaped hole is a long hole, which includes a stop hole section and a lock hole section. The aperture of the stop hole section is larger than the aperture of the lock hole section. The stop part is a convex ring integrally formed on the outside of the limiting column. The stop part can be embedded in the stop hole section and cannot be moved to the lock hole section; the yielding part is a ring groove integrally formed on the outside of the limiting column. The yielding part can move in the stop hole section and the lock hole section.

[0015] As a further optional solution, the support seat includes a first seat body and a second seat body that are fixed to each other, and the sides of the first seat body and the second seat body that are close to each other are provided with a receiving groove for the unlocking plate to slide therein, the pin column is located in the support hole of the first seat body, and the sign change piece is located in the support hole of the second seat body.

[0016] As a further optional solution, a blocking groove is provided in the supporting hole of the second seat body, and a blocking protrusion is provided on the sign-changing piece. In a natural state, the blocking protrusion is embedded in the blocking groove, thereby limiting the circumferential movement of the sign-changing piece; external force drives the sign-changing piece to move axially so that the blocking protrusion disengages from the blocking groove and releases the circumferential limit.

[0017] As a further optional solution, the spring is sleeved on the outside of the limiting column, one end of the spring abuts the limiting column, and the other end abuts the sign-changing piece, so that the blocking protrusion remains embedded in the blocking groove.

[0018] As a further optional solution, a non-circular directional slot is provided at the end of the limiting column, and the number-changing piece is provided with a latching protrusion inserted into the directional slot, and the latching protrusion can move along the depth direction of the directional slot.

[0019] As a further optional solution, the concave-convex embedded structure includes a V-shaped groove arranged at the end of the ball column and a V-shaped protrusion arranged at the end of the limiting column. The V-shaped protrusion can be aligned and embedded in the V-shaped groove. After the limiting column rotates a preset angle, the V-shaped groove and the V-shaped protrusion are staggered instead of embedded.

[0020] As a further optional solution, an axially arranged guide protrusion is provided on the outer side of the pin column, and a guide groove is provided in the support hole, in which the guide protrusion is embedded, so that the pin column can slide axially while being restricted in the rotation direction.

[0021] As a further optional solution, the end of the pin column close to the card insertion slot is semicircular.

[0022] Beneficial effects of the utility model:

[0023] This utility model is a card-type lock that facilitates number change. Compared to existing technologies, the manual switching of the concave and convex interlocking structure between the limit post and the pin pin determines whether the limit post restricts the movement of the unlocking plate in conjunction with the matching hole of the unlocking card. By changing the interlocking relationship between the limit post and the pin pin, different unlocking cards can be used to achieve locking and unlocking. The utility model has a simple structure, is easy to manufacture, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structure diagram of a card-insertion lock that is convenient for changing numbers in an embodiment is combined with a code changing tool.

[0025] Figure 2This is an exploded view of a card-insertion lock that is convenient for changing numbers in an embodiment.

[0026] Figure 3 Schematic diagram of the structure of the locking mechanism in the embodiment.

[0027] Figure 4 2 is a cross-sectional view of the locking mechanism in the embodiment.

[0028] Figure 5 It is a cross-sectional view of a partial structure of the locking mechanism in the embodiment.

[0029] Figure 6 Schematic diagram of the coordination of the unlocking card, limiting column, pin column and unlocking plate in the embodiment.

[0030] Figure 7 Schematic diagram of the second seat in the embodiment.

[0031] Reference numerals:

[0032] Lock housing 1, card slot 11;

[0033] Locking mechanism 2;

[0034] Support seat 3, supporting hole 31, first seat body 32, second seat body 33, receiving groove 34, blocking groove 331;

[0035] Limiting column 4, yielding portion 41, stopping portion 42, V-shaped protrusion 43, directional slot 45;

[0036] Ball column 5, V-shaped groove 51, guide protrusion 52;

[0037] Unlocking assembly 6, unlocking plate 61, special-shaped hole 62, stop hole section 63, unlocking hole section 64, push-twist 65;

[0038] Unlock card 7, matching hole 71;

[0039] One word batch 8;

[0040] Number changing piece 9, locking protrusion 91, and blocking protrusion 92. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0042] This embodiment is a card-type lock that is easy to change the number, such as Figures 1 to 7 As shown, it includes a lock shell 1 and a locking mechanism 2 located in the lock shell 1. The locking mechanism 2 includes a support base 3 fixed in the lock shell 1. The lock shell 1 is provided with a card slot 11 for inserting an external unlocking card 7.

[0043] In this embodiment, the support base 3 is provided with eight support holes 31, which are arranged in two rows, one above the other, with the upper row aligned one-to-one with the lower row. A limiting post 4 and a pin post 5 are inserted into each support hole 31. A spring is provided on the support base 3 to apply force to the limiting post 4, so that the front end of the limiting post 4 remains pressed against the pin post 5 to push it into the card insertion slot 11. After the unlocking card 7 is inserted into the card insertion slot 11, if the pin post 5 is aligned with the matching hole 71 of the unlocking card 7, it will not be squeezed inward by the unlocking card 7. If the pin post 5 is misaligned with the matching hole 71 of the unlocking card 7, it will be pressed inward by the unlocking card 7 and move away from the card insertion slot 11.

[0044] In this embodiment, the locking mechanism 2 further includes an unlocking assembly 6 slidably mounted on the support base 3, which includes a fixed unlocking plate 61 and a push knob 65. The push knob 65 extends outside the lock housing 1. In the unlocked state, an external force operates the push knob 65 to move, driving a transmission member within the lock housing 1, which in turn drives a lock hook within the lock housing 1 to move and unlock. The transmission member and the lock hook can adopt a conventional structure and are not described in detail here. The unlocking plate 61 is provided with a plurality of special-shaped holes 62 for the limit posts 4 to pass through in a one-to-one correspondence. The limit posts 4 are provided with a clearance portion 41 and a stop portion 42 arranged axially. The stop portion 42 is inserted into and aligned with the special-shaped hole 62 to prevent the unlocking plate 61 from moving, thereby locking. The clearance portion 41 is inserted into and aligned with the special-shaped hole 62 to release the blockage on the unlocking plate 61, thereby unlocking.

[0045] In this embodiment, the end of the limiting post 4 abutting the pin post 5 is provided with a concave-convex interlocking structure, which includes a V-shaped groove 51 provided at the end of the pin post 5 and a V-shaped protrusion 43 provided at the end of the limiting post 4. The V-shaped protrusion 43 can be aligned and embedded in the V-groove 51. After the limiting post 4 rotates a preset angle (such as 90 degrees), the V-groove 51 and the V-shaped protrusion 43 are staggered rather than embedded. The rear end of the limiting post 4 is connected to a number-changing member 9 exposed outside the lock housing. The number-changing member 9 and the limiting post 4 are mutually limited in the circumferential direction for common rotation, and can be relatively displaced in the axial direction. In a natural state, the number-changing member 9 is limited in the rotation direction. An external force using a special tool is used to push the number-changing member 9 inward to drive the axial displacement relative to the limiting post 4 to release the restriction and rotate, so as to adjust whether the end of the limiting post 4 is embedded in or not embedded in the pin post 5. The outer end of the limiting post 4 is provided with a single-shaped groove, which is rotated with a single-shaped tool 8. Of course, it can actually be changed to a cross groove or a P-shaped groove. In practice, the positions of the embedded protrusions and grooves can be interchanged, and can also be changed to other shapes, as long as the axial position adjustment of the limiting column 4 can be achieved.

[0046] When the unlocking card 7 is inserted into the card slot 11, the alignment / misalignment of the positioning hole 71 of the unlocking card 7 with the pin column 5, and whether the limiting post 4 is embedded in the pin column 5, jointly determine whether the stop portion 42 or the clearance portion 41 is embedded in the special-shaped hole 62. In this embodiment, only when the positioning hole 71 of the unlocking card 7 is aligned with the pin column 5 (i.e., the pin column 5 extends into the card slot 11) and the end of the limiting post 4 is embedded in the pin column 5, the stop portion 42 is embedded in the special-shaped hole 62 to achieve locking. In other cases, the stop portion 42 is misaligned with the special-shaped hole 62, and the corresponding limiting post 4 does not limit the unlocking plate 61. It can be understood that the unlocking plate 61 can only be slid to unlock when all limiting posts 4 are not limited to the unlocking plate 61. Therefore, the limiting post 4 can be rotated to make the limiting post 4 and the pin column 5 interlock or not interlock, matching the different positioning holes 71 of the unlocking card 7.

[0047] In this embodiment, the support base 3 includes a first base body 32 and a second base body 33 fixed by screws. The sides of the first base body 32 and the second base body 33 that are close to each other are provided with a receiving groove 34 for the unlocking plate 61 to slide therein. The ball column 5 is located in the supporting hole 31 of the first base body 32, and the number change member 9 is located in the supporting hole 31 of the second base body 33.

[0048] In this embodiment, the special-shaped hole 62 is a long hole, which is arranged along the sliding direction of the unlocking plate 61. It includes a stop hole section 63 and a lock hole section 64. The aperture of the stop hole section 63 is larger than the aperture of the lock hole section 64. The stop portion 42 is a convex ring integrally formed on the outside of the limiting column 4. The stop portion 42 can be embedded in the stop hole section 63 and cannot be moved to the lock hole section 64; the yielding portion 41 is a ring groove integrally formed on the outside of the limiting column 4. The yielding portion 41 can move in the stop hole section 63 and the lock hole section 64.

[0049] In this embodiment, a blocking groove 331 is provided in the support hole of the second seat body 33, and a blocking protrusion 92 is provided on the sign-changing member 9. In a natural state, the blocking protrusion 92 is embedded in the blocking groove 331, thereby limiting the circumferential movement of the sign-changing member 9 and preventing it from rotating. External force drives the sign-changing member 9 to move axially so that the blocking protrusion 92 disengages from the blocking groove 331 and releases the circumferential limit. The step cooperation between the blocking protrusion 92 and the blocking groove 331 serves to prevent the sign-changing member 9 from disengaging from the second seat body 33. Specifically, a polygonal directional card groove 45 is provided at the end of the limiting column 4, and the sign-changing member 9 is provided with a polygonal card protrusion 91 inserted into the directional card groove 45 to achieve common rotation, and the card protrusion 91 can move along the depth direction of the directional card groove 45, that is, the axial movement of the limiting column 4.

[0050] Specifically, the spring is sleeved on the outer side of the inner cylinder 44 , with one end of the spring abutting the inner cylinder 44 and the other end abutting the outer cylinder 46 , so that the blocking protrusion 92 remains embedded in the blocking groove 331 and the limiting column 4 remains against the ball column 5 .

[0051] Specifically, the outer side of the ball column 5 is provided with an axially arranged guide protrusion 52, and the support hole 31 is provided with a guide groove, and the guide protrusion 52 is embedded in the guide groove, so that the ball column 5 can slide in the axial direction but be limited in the rotation direction.

[0052] Specifically, the end of the pin column 5 close to the card insertion slot 11 is semicircular, and after the unlocking card 7 is inserted, the pin column 5 can be pushed in the vertical direction.

[0053] In the description of the present invention, it is obvious that the embodiments described are only some embodiments of the present invention, rather than all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0054] 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 present invention as claimed, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0055] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0056] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to connections directly or indirectly through an intermediary, or they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

Claims

1. A card-type lock that is easy to change numbers, characterized by: The invention comprises a lock shell (1) and a locking mechanism (2) located in the lock shell (1), wherein the locking mechanism (2) comprises a support seat (3) fixed in the lock shell (1), and the lock shell (1) is provided with a card insertion slot (11) for inserting an external unlocking card (7); The support seat (3) is provided with a plurality of support holes (31), each support hole (31) is provided with a limit column (4) and a pin column (5), and a spring is provided at the support seat (3) to apply force to the limit column (4), so that the front end of the limit column (4) keeps pushing the pin column (5) to penetrate into the card slot (11); The locking mechanism (2) further comprises an unlocking assembly (6) slidably mounted on the support seat (3), comprising an unlocking plate (61) and a push-twist (65) fixed to each other, wherein the push-twist (65) extends out of the lock housing (1); the unlocking plate (61) is provided with a plurality of special-shaped holes (62) for the limiting column (4) to pass through, and the limiting column (4) is provided with a yielding portion (41) and a stop portion (42); the stop portion (42) is embedded in the special-shaped hole (62) to block the unlocking plate (61) from moving to achieve locking, and the yielding portion (41) is embedded in the special-shaped hole (62) to release the blockage of the unlocking plate (61) to achieve unlocking; The end portion of the limiting column (4) abutting against the ball column (5) is provided with a concave-convex embedded structure, the rear end portion of the limiting column (4) is connected to a number-changing piece (9) exposed outside the lock housing (1), the number-changing piece (9) and the limiting column (4) are mutually limited in the circumferential direction so as to rotate together, and can be relatively displaced in the axial direction; in a natural state, the number-changing piece (9) is limited in the rotation direction, and an external force drives the number-changing piece (9) to axially displace relative to the limiting column (4) to release the restriction and rotate, so as to adjust whether the end portion of the limiting column (4) is embedded in or not embedded in the ball column (5); When the unlocking card (7) is inserted into the card slot (11), the alignment / misalignment of the positioning hole (71) of the unlocking card (7) with the pin column (5) and whether the limiting column (4) is embedded in the pin column (5) jointly determine whether the stop portion (42) or the yield portion (41) is embedded in the special-shaped hole (62).

2. The card-insertion lock for easy number change according to claim 1, characterized in that: The matching hole (71) of the unlocking card (7) is aligned with the pin column (5), and when the end of the limiting column (4) is embedded in the pin column (5), the stop portion (42) is embedded in the special-shaped hole (62) to achieve locking.

3. The card-insertion lock for easy number change according to claim 1, characterized in that: The special-shaped hole (62) is a long hole, which includes a stop hole section (63) and a lock hole section (64). The aperture of the stop hole section (63) is larger than the aperture of the lock hole section (64). The stop portion (42) is a convex ring integrally formed on the outer side of the limiting column (4). The stop portion (42) can be embedded in the stop hole section (63) and cannot be moved to the lock hole section (64). The yielding portion (41) is a ring groove integrally formed on the outer side of the limiting column (4). The yielding portion (41) can move in the stop hole section (63) and the lock hole section (64).

4. The card-insertion lock for easy number change according to claim 1, characterized in that: The support base (3) comprises a first base body (32) and a second base body (33) fixed to each other. The adjacent sides of the first base body (32) and the second base body (33) are provided with a receiving groove (34) for the unlocking plate (61) to slide therein. The ball column (5) is located in the supporting hole (31) of the first base body (32), and the sign changing member (9) is located in the supporting hole (31) of the second base body (33).

5. The card-insertion lock for easy number change according to claim 4, characterized in that: A blocking groove (331) is provided in the supporting hole (31) of the second seat body (33), and a blocking protrusion (92) is provided on the sign-changing member (9). In a natural state, the blocking protrusion (92) is embedded in the blocking groove (331), thereby limiting the circumferential movement of the sign-changing member (9); an external force drives the sign-changing member (9) to move axially so that the blocking protrusion (92) is separated from the blocking groove (331) and the circumferential limit is released.

6. The card-insertion lock for easy number change according to claim 5, characterized in that: The spring is sleeved on the outside of the limiting column (4), with one end of the spring abutting against the limiting column (4) and the other end abutting against the sign-changing member (9), thereby keeping the blocking protrusion (92) embedded in the blocking groove (331).

7. The card-insertion lock for easy number change according to claim 1, characterized in that: The end of the limiting column (4) is provided with a non-circular directional slot (45), and the number-changing piece (9) is provided with a cam (91) inserted into the directional slot (45), and the cam (91) can move along the depth direction of the directional slot (45).

8. The card-insertion lock for easy number change according to claim 1, characterized in that: The concave-convex embedded structure comprises a V-shaped groove (51) provided at the end of the ball column (5) and a V-shaped protrusion (43) provided at the end of the limiting column (4); the V-shaped protrusion (43) can be aligned and embedded in the V-shaped groove (51); after the limiting column (4) rotates at a preset angle, the V-shaped groove (51) and the V-shaped protrusion (43) are staggered rather than embedded.

9. The card-insertion lock for easy number change according to claim 1, characterized in that: The outer side of the ball column (5) is provided with an axially arranged guide protrusion (52), and the support hole (31) is provided with a guide groove, in which the guide protrusion (52) is embedded, so that the ball column (5) can slide in the axial direction while being limited in the rotation direction.

10. The card-insertion lock for easy number change according to claim 1, characterized in that: The end of the pin column (5) close to the card insertion slot (11) is semicircular.

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