Card inserting type lock body structure

Abstract

The utility model relates to the technical field of locks, in particular to a card inserting type lock body structure, a locking mechanism comprises an inner shell and a supporting seat fixed in the inner shell, and card inserting grooves allowing an unlocking card to be inserted are formed in the inner shell and a lock shell; a plurality of supporting holes are formed in the supporting seat, and a limiting column and a marble column are arranged in each supporting hole in a penetrating manner; the locking mechanism further comprises an unlocking assembly installed on the supporting base, and the transmission piece and the unlocking assembly slide together to achieve unlocking. The unlocking assembly comprises a locking block, a number changing plate and a push button, a plurality of transition holes are formed in the number changing plate, and when the unlocking assembly is located at the unlocking position and the locking position, the supporting holes are aligned with the different transition holes; middle beads are arranged in part of the transition holes; when the unlocking assembly is in the unlocking position state, the unlocking clamping piece with the coordination hole is inserted, the middle bead in the transition hole aligned with the coordination hole moves into the supporting hole, and after the unlocking assembly is reset to the locking position, the middle bead in the supporting hole moves into other transition holes, number changing is achieved, and the number changing structure is simpler and more ingenious.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a card-insertion lock body structure. 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. Summary of the Invention

[0006] In view of all or part of the above technical problems existing in the prior art, the utility model provides a card-insertion lock body structure.

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

[0008] A card-insertion lock structure is provided, comprising a lock housing, a locking mechanism, and a transmission member. The locking mechanism is mounted on the lock housing, and the transmission member is movably mounted on the lock housing and is restricted by the locking mechanism. The transmission member can only be operated to move after the locking mechanism inputs a correct instruction. The structure is characterized by:

[0009] The locking mechanism includes an inner shell and a support seat fixed in the inner shell. The inner shell and the lock shell are provided with a card slot for inserting an external unlocking card.

[0010] The support seat is provided with a plurality of support holes, each of which is provided with a limit column and a pin column. The support seat is provided with a spring that applies force to the limit column, so that the limit column keeps pushing the pin column into the card slot.

[0011] The locking mechanism also includes an unlocking assembly slidably mounted on the support base, and the transmission member can slide together with the unlocking assembly to unlock; the unlocking assembly includes a lock block, a number change plate and a push knob, and the push knob extends out of the lock housing; the limit column is provided with a first locking portion, and the lock block is provided with a second locking portion, and the first locking portion and the second locking portion abut against each other to prevent the unlocking assembly from sliding to unlock;

[0012] The number-changing plate is located at the intersection of the limit column and the pin column. The number-changing plate is provided with multiple transition holes. The number of transition holes is greater than the number of supporting holes. When the unlocking assembly is in the unlocking position and the locking position, the supporting holes are aligned with different transition holes. Intermediate beads are provided in some of the transition holes.

[0013] There is no intermediate bead between the limiting post and the pin post and when the pin post is inserted into the card slot, the first locking portion and the second locking portion abut against each other to lock the card. Inserting an unlocking card into the card slot pushes the pin post and the limiting post to move, so that the first locking portion and the second locking portion are offset and unlocked.

[0014] When there is an intermediate bead between the limiting column and the pin column, the first locking portion and the second locking portion remain staggered;

[0015] When the unlocking assembly is in the unlocking position, insert the unlocking card with the matching hole, align the middle bead in the transition hole of the matching hole and shift it to the supporting hole. After the unlocking assembly is reset to the locked position, the middle bead in the supporting hole is transferred to the other transition hole to achieve number change.

[0016] As a further optional solution, the support base includes a first base body and a second base body that are fixed to each other, and the first base body, the number changing plate, the second base body and the locking block are arranged in sequence in a direction away from the card insertion slot.

[0017] As a further optional solution, the first seat body and the second seat body are fitted and fixed together, and a receiving groove for the number changing plate to slide in is opened between the first seat body and the second seat body, and the length of the ball column is equal to the length of the support hole in the first seat body.

[0018] As a further optional solution, the inner shell includes a "["-shaped frame and a locking plate. A guide slide is provided between the ends of the first seat body and the second seat body and the frame body. The locking plate and the frame body jointly lock the first seat body and the second seat body.

[0019] As a further optional solution, the supporting holes and the transition holes are arranged in upper and lower rows respectively, and a transition hole is arranged between two adjacent supporting holes in the same row.

[0020] As a further optional solution, the support seat is also provided with a position holding column, which is arranged in parallel with the pin column. The position holding column is provided with an outer ring groove, and the number changing plate is provided with a positioning hole for the position holding column to pass through. The positioning hole is a long hole with large ends and a small middle. When the number changing plate is in the locked position or the unlocked position, the outer ring groove and the positioning hole are staggered, and the number changing plate is blocked in the sliding direction. Only after the unlocking card is inserted into the card slot to push the position holding column inward and align the outer ring groove with the positioning hole, can the position holding column remove the obstruction of the number changing plate in the sliding direction.

[0021] As a further optional solution, the end of the pin column close to the card slot and the end of the limit column close to the pin column are arc-shaped, the end of the transition hole facing the limit column downward is in the shape of a flared trumpet, the middle bead is cylindrical and has chamfered edges at both ends.

[0022] As a further optional solution, the card insertion slot passes through the top of the lock housing, and the pin column vertically penetrates into the card insertion slot.

[0023] As a further optional solution, the side wall of the card insertion slot is provided with a curved portion to hinder the smooth insertion of the unlocking card.

[0024] As a further optional solution, the push knob is provided with a key lock core, a protrusion is provided at the bottom of the key lock core at a position offset from the center axis, and the transmission part is provided with a long hole perpendicular to the sliding direction, and the protrusion is embedded in the long hole so that the key lock core drives the transmission part to slide when it rotates.

[0025] Beneficial effects of the utility model:

[0026] Compared with the prior art, the card-insertion lock body structure of the utility model has a simpler and more ingenious number-changing structure and reduces manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of the lock in the embodiment.

[0028] Figure 2 2 is a top view of the lock in the embodiment.

[0029] Figure 3 Schematic diagram of the locking mechanism and transmission member in the embodiment.

[0030] Figure 4 2 is an exploded view of the lock in the embodiment.

[0031] Figure 5-1 This is a schematic diagram of the locking mechanism in the embodiment when no unlocking card is inserted and the four middle beads are staggered with the pin column.

[0032] Figure 5-2 The locking mechanism in the embodiment is in Figure 5-1 Exploded view of the state shown.

[0033] Figure 5-3 The locking mechanism of the lock in the embodiment is in Figure 5-1 Cross-sectional view of the state shown.

[0034] Figure 5-4 for Figure 5-1 Schematic diagram from another perspective.

[0035] Figure 6-1 This is a schematic diagram of the lock in the embodiment with the unlocking card inserted and the four middle beads staggered with the pin columns.

[0036] Figure 6-2 The locking mechanism is in Figure 6-1 Exploded view of the state shown.

[0037] Figure 6-3 for Figure 6-1 sectional view of .

[0038] Figure 6-4 for Figure 6-1 Schematic diagram of the locking mechanism in the shown state.

[0039] Figure 7-1 For Figure 6-1 Schematic diagram of the unlocking component after it moves further to the unlocking position in the state.

[0040] Figure 7-2 for Figure 7-1 Schematic diagram of the locking mechanism in the closed state, hiding the second seat.

[0041] Figure 8-1 This is a schematic diagram of the unlocking mechanism after the unlocking card with the matching hole is inserted when the unlocking component is in the unlocking position.

[0042] Figure 8-2 for Figure 8-1 Exploded diagram of .

[0043] Figure 8-3 For locks in Figure 8-1 Cross-sectional view of the state.

[0044] Figure 8-4 The locking mechanism is in Figure 8-1 Schematic diagram of the state, hiding the second seat.

[0045] Figure 9-1 For the locking mechanism Figure 8-1 Based on this, a schematic diagram of further unlocking the component moving to the locked position.

[0046] Figure 9-2 for Figure 9-1 Exploded view of the locking mechanism in this state.

[0047] Figure 9-3 for Figure 9-1 Cross-sectional view of the lock in this state.

[0048] Figure 9-4 for Figure 9-1 Schematic diagram of the locking mechanism from another perspective in this state, hiding the second seat.

[0049] Reference numerals:

[0050] Lock case 1, lock hole 01;

[0051] Transmission member 2, lock seat 300;

[0052] Locking mechanism 5;

[0053] Inner housing 6, card slot 61, curved portion 611, frame 62, locking plate 63, guide slide 64;

[0054] Support seat 7, supporting hole 71, first seat body 72, second seat body 73, receiving groove 74;

[0055] Limiting column 8, first locking portion 81, ball column 9;

[0056] Unlocking assembly 10, locking block 101, second locking portion 1011; number changing plate 102, transition hole 1021, positioning hole 1022;

[0057] Push and twist 11, middle bead 12;

[0058] Position holding column 13, outer ring groove 131;

[0059] Key lock 14;

[0060] Unlocking card 15 and matching hole 151. DETAILED DESCRIPTION

[0061] 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.

[0062] The lock of this embodiment, such as Figures 1 to 9-4 As shown, the lock comprises a lock housing 1, a locking mechanism 5, and a transmission member 2. The locking mechanism 5 is mounted on the lock housing 1, and the transmission member 2 is movably mounted on the lock housing 1 and is restrained by the locking mechanism 5. The transmission member 2 can only be operated to move after the locking mechanism 5 inputs the correct command. The lock housing 1 is provided with a lock hole 01, and a lock seat 300 is provided within the lock hole 01 for clamping the peripheral locked object. When unlocking, the transmission member 2 slides to drive the lock seat 300 to release the restraint on the locked object. The main improvements are:

[0063] The locking mechanism 5 includes an inner shell 6 and a support base 7 fixed in the inner shell 6. The inner shell 6 and the lock shell 1 are provided with a card slot 61 for inserting an external unlocking card 15. The card slot 61 passes through the top of the lock shell 1.

[0064] The support base 7 has eight support holes 71, each of which is penetrated by a limiting post 8 and a pin post 9. A spring (not shown) is provided on the support base 7 to apply force to the limiting post 8, thereby ensuring that the limiting post 8 continues to push the pin post 9 into the card insertion slot 61. The pin post 9 is inserted into the card insertion slot 61 perpendicular to the direction in which the unlocking card 15 is inserted.

[0065] The locking mechanism 5 also includes an unlocking assembly 10 slidably mounted on the support base 7. The transmission member 2 can slide with the unlocking assembly 10 to unlock the door. The unlocking assembly 10 includes a locking block 101, a number change plate 102, and a push knob 11. These three components can slide as a whole relative to the support base 7. The push knob 11 partially extends outside the lock housing 1 for operation to open and close the lock. The rear end of the limit post 8 is provided with a first locking portion 81, and the locking block 101 is provided with a second locking portion 1011. The first locking portion 81 and the second locking portion 1011 abut against each other to prevent the unlocking assembly 10 from sliding to unlock the door.

[0066] The number changing plate 102 is located at the intersection of the limiting column 8 and the ball column 9. The number changing plate 102 has sixteen transition holes 1021. The number of transition holes 1021 is greater than the number of supporting holes 71. When the unlocking assembly 10 is in the unlocking position and the locking position, the supporting holes 71 are aligned with different transition holes 1021. Four of the transition holes 1021 are provided with intermediate beads 12. Figure 5-1 to Figure 5-4As shown, in this state, all the intermediate beads 12 have no corresponding limit posts 8 and pin posts 9, that is, the limit posts 8 all directly press against the pin posts 9. At this time, there are no intermediate beads 12 between the limit posts 8 and the pin posts 9, and the pin posts 9 are inserted into the card slot 61. The first locking portion 81 and the second locking portion 1011 press against each other to lock, and the limit post 8 passes through the transition hole 1021. Therefore, the limit post 8 blocks the lock block 101 and the number change plate 102 at the same time, and the entire unlocking assembly 10 cannot slide to unlock. Figure 6-1 to Figure 6-4 As shown, the unlocking card 15 is inserted into the card slot 61 to push the pin column 9 and the limit column 8 to move. The unlocking card 15 shown in the figure does not have the matching hole 151, so all the pin columns 9 and the limit column 8 can be pushed inward, so that the first locking portion 81 and the second locking portion 1011 can be staggered and unlocked, and the limit column 8 retracts until only the end thereof penetrates the transition hole 1021, so that the limit column 8 no longer blocks the lock block 101 and the number change plate 102. Figure 7-2 and Figure 7-2 As shown, the entire unlocking assembly 10 and the transmission member 2 slide to the unlocking position.

[0067] Continue as Figure 7-1 and Figure 7-2 As shown, when there is an intermediate bead 12 between the limiting column 8 and the ball column 9, the first locking portion 81 and the second locking portion 1011 remain staggered. Figures 8-1 to 8-4 As shown, when the unlocking assembly 10 is kept in the unlocking position, the unlocking card 15 with the matching hole 151 is inserted, and the middle bead 12 in the transition hole 1021 aligned with the matching hole 151 is shifted into the support hole 71. There are two matching holes 151 in the figure, and the head of the ball column 9 is inserted into the corresponding matching hole 151. In this way, the middle bead 12 between the ball column 9 and the limiting column 8 is separated from the transition hole 1021 and enters the support hole 71 under the action of the spring. Figures 9-1 to 9-4 As shown, after the unlocking assembly 10 is reset to the locked position, the middle bead 12 in the supporting hole 71 is transferred to the other transition hole 1021 to achieve the number change.

[0068] During use, the lock is equipped with several unlocking cards 15. If the pin column 9 corresponds to a support hole 71 with an intermediate bead 12, the corresponding stopper 8 does not block the unlocking assembly 10, regardless of whether the corresponding position of the unlocking card 15 has a matching hole 151. However, if the pin column 9 corresponds to a support hole 71 without an intermediate bead 12, the corresponding stopper 8 blocks the unlocking assembly 10, and the corresponding position of the unlocking card 15 must not have a matching hole 151 in order to unlock the lock. Therefore, depending on whether the support hole 71 has an intermediate bead 12, different unlocking cards 15 are configured with or without matching holes 151, enabling unlocking with different unlocking cards 15.

[0069] Specifically, the support base 7 includes a first base body 72 and a second base body 73 fixed to each other. The first base body 72, the number change plate 102, the second base body 73, and the locking block 101 are arranged in sequence in a direction away from the card insertion slot 61. The first base body 72 and the second base body 73 are fixed together, and a receiving groove 74 for the number change plate 102 to slide therein is defined between the first base body 72 and the second base body 73. The length of the ball column 9 is equal to the length of the support hole 71 in the first base body 72, and the length of the intermediate bead 12 is approximately equal to the thickness of the number change plate 102.

[0070] Specifically, the inner shell 6 includes a "["-shaped frame 62 and a locking plate 63. A guide slide 64 is provided between the ends of the first seat 72 and the second seat 73 and the frame 62. The locking plate 63 and the frame 62 jointly lock the first seat 72 and the second seat 73, which is convenient to assemble and easy to produce.

[0071] Specifically, the support holes 71 and the transition holes 1021 are arranged in two rows, one above the other, and a transition hole 1021 is arranged between two adjacent support holes 71 in the same row.

[0072] Specifically, the support seat 7 is also provided with a position holding column 13, which is arranged in parallel with the pin column 9. The position holding column 13 elastically passes through the card insertion slot 61. The position holding column 13 is provided with an outer ring groove 131, and the number changing plate 102 is provided with a positioning hole 1022 for the position holding column 13 to pass through. The positioning hole 1022 is a long hole with large ends and a small middle; when the number changing plate 102 is in the locked position or the unlocked position, the outer ring groove 131 is staggered with the positioning hole 1022, and the position holding column 13 is located at both ends of the positioning hole 1022, so the number changing plate 102 is blocked in the sliding direction; only after the unlocking card 15 is inserted into the card insertion slot 61 to push the position holding column 13 inward and align the outer ring groove 131 with the embedded positioning hole 1022, can the position holding column 13 remove the obstruction of the number changing plate 102 in the sliding direction. That is, no matter whether the unlocking assembly 10 is located in the unlocking position or the locking position, as long as the unlocking card 15 is pulled out, the unlocking assembly 10 remains in the position.

[0073] Specifically, the ends of the pin column 9 near the card slot 61 and the end of the stop column 8 near the pin column 9 are arc-shaped, the end of the transition hole 1021 facing downward toward the stop column 8 is flared, and the middle bead 12 is cylindrical with chamfered edges at both ends, facilitating perpendicular movement or squeeze-to-displacement.

[0074] In this embodiment, Figure 2 As shown, the side wall of the card slot 61 is provided with a curved portion 611 to hinder the insertion of a flat unlocking card 15, that is, to limit the insertion of ordinary flat cards without matching holes 151, and only cards with the same curved shape can be inserted to avoid malicious unlocking.

[0075] In this embodiment, the push knob 11 is equipped with a key lock core 14. A protrusion is provided at the bottom of the key lock core 14, offset from the center axis. The transmission member 2 is provided with an elongated hole perpendicular to the sliding direction. The protrusion is embedded in the elongated hole, so that when the key lock core 14 rotates, the transmission member 2 slides. Two unlocking methods are provided: card unlocking and key unlocking.

[0076] 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.

[0077] 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.

[0078] 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 inventive 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 devices or components 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.

[0079] 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-insertion lock structure, comprising a lock housing (1), a locking mechanism (5), and a transmission member (2), wherein the locking mechanism (5) is mounted on the lock housing (1), and the transmission member (2) is movably mounted on the lock housing (1) and is restricted by the locking mechanism (5), and the transmission member (2) can be operated to move only after the locking mechanism (5) inputs a correct instruction; wherein the lock structure is characterized by: The locking mechanism (5) comprises an inner shell (6) and a support seat (7) fixed in the inner shell (6); the inner shell (6) and the lock shell (1) are provided with a card slot (61) for inserting an external unlocking card (15); The support seat (7) is provided with a plurality of support holes (71), each support hole (71) is provided with a limit column (8) and a pin column (9), and a spring is provided at the support seat (7) to apply force to the limit column (8), so that the limit column (8) keeps pushing the pin column (9) to penetrate into the card insertion slot (61); The locking mechanism (5) further comprises an unlocking assembly (10) slidably mounted on the support seat (7), and the transmission member (2) can slide together with the unlocking assembly (10) to unlock; the unlocking assembly (10) comprises a locking block (101), a number changing plate (102) and a push knob (11), and the push knob (11) extends out of the lock housing (1); the limiting column (8) is provided with a first locking portion (81), and the locking block (101) is provided with a second locking portion (1011), and the first locking portion (81) and the second locking portion (1011) abut against each other to prevent the unlocking assembly (10) from sliding to unlock; The number changing plate (102) is located at the intersection of the limiting column (8) and the pin column (9), and the number changing plate (102) is provided with a plurality of transition holes (1021). The number of the transition holes (1021) is greater than the number of the supporting holes (71), and when the unlocking assembly (10) is in the unlocking position and the locking position, the supporting holes (71) are aligned with different transition holes (1021); and intermediate beads (12) are provided in some of the transition holes (1021); When there is no intermediate bead (12) between the limiting column (8) and the pin column (9) and the pin column (9) is inserted into the card insertion slot (61), the first locking portion (81) and the second locking portion (1011) abut against each other to lock, and the unlocking card (15) is inserted into the card insertion slot (61) to push the pin column (9) and the limiting column (8) to move, so that the first locking portion (81) and the second locking portion (1011) are staggered and unlocked; When there is an intermediate bead (12) between the limiting column (8) and the ball column (9), the first locking portion (81) and the second locking portion (1011) remain staggered; When the unlocking assembly (10) is in the unlocking position, an unlocking card (15) with a matching hole (151) is inserted, and the middle bead (12) in the transition hole (1021) aligned with the matching hole (151) is shifted to the supporting hole (71). After the unlocking assembly (10) is reset to the locking position, the middle bead (12) in the supporting hole (71) is transferred to another transition hole (1021), thereby achieving a number change.

2. The card-insertion lock structure according to claim 1, characterized in that: The support seat (7) comprises a first seat body (72) and a second seat body (73) fixed to each other. The first seat body (72), the number changing plate (102), the second seat body (73) and the locking block (101) are arranged in sequence in a direction away from the card insertion slot (61).

3. The card-insertion lock structure according to claim 2, wherein: The first base body (72) and the second base body (73) are fitted and fixed together, and a receiving groove (74) for the number changing plate (102) to slide therein is opened between the first base body (72) and the second base body (73), and the length of the ball column (9) is equal to the length of the supporting hole (71) in the first base body (72).

4. The card-insertion lock structure according to claim 2, wherein: The inner shell (6) includes a "["-shaped frame (62) and a locking plate (63). A guide slideway (64) is provided between the ends of the first seat (72) and the second seat (73) and the frame (62). The locking plate (63) and the frame (62) jointly lock the first seat (72) and the second seat (73).

5. The card-insertion lock structure according to claim 1, characterized in that: The supporting holes (71) and the transition holes (1021) are arranged in upper and lower rows respectively, and a transition hole (1021) is arranged between two adjacent supporting holes (71) in the same row.

6. The card-insertion lock structure according to claim 1, characterized in that: The support seat (7) is further provided with a position holding column (13), which is arranged in parallel with the pin column (9), the position holding column (13) is provided with an outer ring groove (131), and the number changing plate (102) is provided with a positioning hole (1022) for the position holding column (13) to pass through, and the positioning hole (1022) is a long hole with large ends and a small middle; when the number changing plate (102) is in the locked position or the unlocked position, the outer ring groove (131) and the positioning hole (1022) are staggered, and the number changing plate (102) is blocked in the sliding direction; only after the unlocking card (15) is inserted into the card slot (61) to push the position holding column (13) inward and align the outer ring groove (131) with the embedded positioning hole (1022), can the position holding column (13) remove the obstruction to the number changing plate (102) in the sliding direction.

7. The card-insertion lock structure according to claim 1, characterized in that: The end of the pin column (9) close to the card slot (61) and the end of the limit column (8) close to the pin column (9) are arc-shaped, the end of the transition hole (1021) facing the limit column (8) downward is in the shape of a flared trumpet, and the middle bead (12) is cylindrical and has chamfered edges at both ends.

8. The card-insertion lock structure according to claim 7, characterized in that: The card insertion slot (61) passes through the top of the lock housing (1), and the pin column (9) vertically penetrates into the card insertion slot (61).

9. The card-insertion lock structure according to claim 1, characterized in that: The side wall of the card insertion slot (61) is provided with a curved portion (611) to hinder the insertion of a flat unlocking card (15).

10. The card-insertion lock structure according to claim 1, characterized in that: The push knob (11) is provided with a key lock core (14), a convex column is provided at the bottom of the key lock core (14) at a position deviated from the central axis, and the transmission member (2) is provided with a long hole perpendicular to the sliding direction, and the convex column is embedded in the long hole, so that when the key lock core (14) rotates, the transmission member (2) is driven to slide.

Images