Cabinet door structure capable of realizing self-locking of various locksets

By designing a cabinet door structure that includes a fixed lock lever, a movable lock lever and a handle, and combining the lock pad, bottom plate, lock mounting plate, hook plate and lock tongue block, the problem that the CEN1-grade safe is not compatible with SWING LOCK locks is solved, and the self-locking function and structure of a variety of locks is simplified.

CN222595843UActive Publication Date: 2025-03-11WUXI BAM PRECISION METAL WORKS CO LTD
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Patent Information

Application Number
CN202421253608.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2025-03-11
Estimated Expiration
2034-06-03

AI Technical Summary

Technical Problem

The existing CEN1-grade safe structure does not support the installation of SWING LOCK locks, which makes it incompatible with this type of lock.

Method used

A cabinet door structure including cabinet door, fixed lock lever, movable lock lever and handle is designed, and the self-locking function of a variety of locks is realized through the combination of lock pads, bottom plates, lock mounting plates, hook plates and lock tongue blocks.

Benefits of technology

The self-locking function of a variety of locks is realized, which simplifies the structural design and production process, and has good compatibility and can install different types of locks.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222595843U_ABST
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Abstract

The utility model relates to a cabinet door structure capable of achieving self-locking of various locksets. The cabinet door structure comprises a cabinet door, a fixed lock rod, a movable lock rod and a handle. A movable lock rod seat and a transversely arranged fixed lock rod are fixed on the back surface of the cabinet door, a transversely arranged movable lock rod is movably mounted in the movable lock rod seat, and a handle for driving the movable lock rod is rotationally mounted on the cabinet door; a lock base plate is fixed to the back face of the cabinet door above the fixed lock rod, a bottom plate is fixed to the back face of the lock base plate, a lock installation plate is fixed to the back face of the bottom plate, and a hook plate is movably installed below the lock base plate and corresponds to the back face of the cabinet door between the fixed lock rod and the movable lock rod through at least two positioning pins. The self-locking device can realize self-locking of various locksets, and has the advantages of simple structure, convenience in production and installation and the like.
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Description

Technical Field

[0001] The utility model relates to a cabinet door structure of a safe, and specifically discloses a cabinet door structure capable of realizing self-locking of multiple locks. Background Art

[0002] CEN (CEN is the general term for concrete-filled safes in EU standard EN1143-1) safes have always been popular in domestic and foreign markets. They are superior to UL safes in terms of safety and structural performance. Based on the good market prospects, CEN safes have always been the core research object in the industry. At present, due to market demand, SWING LOCK locks need to be installed on CEN1-level safes. Since the previous structure of CEN1 safes does not support the installation of SWING LOCK locks, it is of utmost importance to study a new lock installation structure to make it compatible with SWING LOCK. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a cabinet door structure that can realize self-locking of multiple locks.

[0004] According to the technical solution provided by the utility model, the cabinet door structure realizing self-locking of multiple locks includes a cabinet door, a fixed lock rod, a movable lock rod and a handle; a movable lock rod seat and a horizontally arranged fixed lock rod are fixed on the back of the cabinet door, a horizontally arranged movable lock rod is movably installed in the movable lock rod seat, the movable lock rod cooperates with the fixed lock rod, and a handle for driving the movable lock rod is rotatably installed on the cabinet door;

[0005] It also includes a lock pad, a bottom plate, a lock installation plate, a hook plate and a lock tongue block; a lock pad is fixed on the back of the cabinet door corresponding to the upper part of the fixed lock rod, a bottom plate is fixed on the back of the lock pad, and a lock installation plate is fixed on the back of the bottom plate;

[0006] A hook plate is movably mounted on the back of the cabinet door below the lock pad and between the fixed lock rod and the movable lock rod via at least two positioning pins;

[0007] The lock plate comprises a lock plate body, a lock plate key hole is formed on the lock plate body, and a first hook plate movement guide groove with an opening facing downward is formed on the lock plate body below the lock plate key hole;

[0008] The bottom plate comprises a bottom plate body, a bottom plate key hole is formed on the bottom plate body, a second hook plate movement guide groove and a first avoidance groove are formed on the bottom plate body below the bottom plate key hole, the lower end of the second hook plate movement guide groove is connected to the upper end of the first avoidance groove, the width of the second hook plate movement guide groove is smaller than the width of the first avoidance groove, and the opening of the first avoidance groove faces downward;

[0009] The lock mounting plate comprises a lock mounting plate body, a lock mounting plate key slot and a second avoidance slot are provided on the lock mounting plate body, the second avoidance slot is located below the lock mounting plate key slot, the opening of the lock mounting plate key slot faces upward, the opening of the second avoidance slot faces downward, and a lock mounting plate rivet hole is provided on the lock mounting plate body between the lock mounting plate key slot and the second avoidance slot;

[0010] The hook plate comprises a hook plate body, a bolt block insertion hole is formed on the hook plate body, at least two guide waist-shaped holes are formed on the hook plate body below the bolt block insertion hole, a blocking plate is fixed to the lower end of the hook plate body, a transition plate is fixed to the upper end of the hook plate body, a connecting plate is fixed to the upper end of the transition plate, a connecting plate rivet hole is formed on the connecting plate, and the connecting plate is located in front of the hook plate body as a whole;

[0011] The lock tongue block comprises a lock tongue block body, and a lock tongue block plug plate is provided at the lower end of the front end surface of the lock tongue block body;

[0012] The keyhole of the lock pad and the keyhole of the bottom plate cooperate with the key slot of the lock mounting plate, the first hook plate movement guide groove cooperates with the second hook plate movement guide groove, the first avoidance groove cooperates with the second avoidance groove, the guide waist-shaped hole cooperates with the corresponding positioning pin, and the lock tongue block plug plate cooperates with the lock tongue block plug hole.

[0013] Preferably, the blocking plate is arranged perpendicularly to the hook plate body, and the connecting plate is arranged parallel to the hook plate body.

[0014] A cabinet door structure for realizing self-locking of multiple locks, comprising a cabinet door, a fixed lock rod, a movable lock rod and a handle; a movable lock rod seat and a fixed lock rod arranged in a transverse direction are fixed on the back of the cabinet door, a movable lock rod arranged in a transverse direction is movably installed in the movable lock rod seat, the movable lock rod cooperates with the fixed lock rod, and a handle for driving the movable lock rod is rotatably installed on the cabinet door;

[0015] It also includes a lock pad, a bottom plate, a lock installation plate and a hook plate; a lock pad is fixed on the back of the cabinet door corresponding to the upper part of the fixed lock rod, a bottom plate is fixed on the back of the lock pad, and a lock installation plate is fixed on the back of the bottom plate;

[0016] A hook plate is movably mounted on the back of the cabinet door below the lock pad and between the fixed lock rod and the movable lock rod via at least two positioning pins;

[0017] The lock plate comprises a lock plate body, a lock plate key hole is formed on the lock plate body, and a first hook plate movement guide groove with an opening facing downward is formed on the lock plate body below the lock plate key hole;

[0018] The bottom plate comprises a bottom plate body, a bottom plate key hole is formed on the bottom plate body, a second hook plate movement guide groove and a first avoidance groove are formed on the bottom plate body below the bottom plate key hole, the lower end of the second hook plate movement guide groove is connected to the upper end of the first avoidance groove, the width of the second hook plate movement guide groove is smaller than the width of the first avoidance groove, and the opening of the first avoidance groove faces downward;

[0019] The lock mounting plate comprises a lock mounting plate body, a lock mounting plate key slot and a second avoidance slot are provided on the lock mounting plate body, the second avoidance slot is located below the lock mounting plate key slot, the opening of the lock mounting plate key slot faces upward, the opening of the second avoidance slot faces downward, and a lock mounting plate rivet hole is provided on the lock mounting plate body between the lock mounting plate key slot and the second avoidance slot;

[0020] The hook plate comprises a hook plate body, a bolt block insertion hole is formed on the hook plate body, at least two guide waist-shaped holes are formed on the hook plate body below the bolt block insertion hole, a blocking plate is fixed to the lower end of the hook plate body, a transition plate is fixed to the upper end of the hook plate body, a connecting plate is fixed to the upper end of the transition plate, a connecting plate rivet hole is formed on the connecting plate, and the connecting plate is located in front of the hook plate body as a whole;

[0021] The key hole of the lock pad plate and the key hole of the base plate cooperate with the key slot of the lock mounting plate, the first hook plate movement guide groove cooperates with the second hook plate movement guide groove, the first avoidance groove cooperates with the second avoidance groove, the guide waist-shaped hole cooperates with the corresponding positioning pin, and rivets are installed in the rivet hole of the lock mounting plate and the rivet hole of the connecting plate.

[0022] Preferably, the blocking plate is arranged perpendicularly to the hook plate body, and the connecting plate is arranged parallel to the hook plate body.

[0023] The utility model can realize self-locking of various locks and has the advantages of simple structure, easy production and installation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a stereogram of Example 1.

[0025] Figure 2 This is a usage status diagram of Example 1.

[0026] Figure 3 yes Figure 2 Enlarged view of part A.

[0027] Figure 4 This is a stereogram of Example 2.

[0028] Figure 5 This is a usage status diagram of Example 2.

[0029] Figure 6 yes Figure 5 Magnified view of part B.

[0030] Figure 7 It is a three-dimensional diagram of the lock pad.

[0031] Figure 8 It is a three-dimensional image of the base plate.

[0032] Fig. 9 It is a three-dimensional diagram of the lock mounting plate.

[0033] Fig.10 It is a three-dimensional diagram of the hook plate.

[0034] Fig.11 It is a three-dimensional diagram of the lock bolt block. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. Example

[0036] A cabinet door structure that realizes self-locking of multiple locks, such as Figure 1-3 as well as Figure 7-11 As shown, it comprises a cabinet door 1, a fixed lock rod 2.1, a movable lock rod 2.2 and a handle 3; a movable lock rod seat and a horizontally arranged fixed lock rod 2.1 are fixed on the back of the cabinet door 1, a horizontally arranged movable lock rod 2.2 is movably installed in the movable lock rod seat, the movable lock rod 2.2 cooperates with the fixed lock rod 2.1, and a handle 3 for driving the movable lock rod 2.2 is rotatably installed on the cabinet door 1;

[0037] It also includes a lock plate 4, a bottom plate 5, a lock mounting plate 6, a hook plate 7 and a lock tongue block 8; a lock plate 4 is fixed on the back of the cabinet door 1 corresponding to the fixed lock rod 2.1, a bottom plate 5 is fixed on the back of the lock plate 4, and a lock mounting plate 6 is fixed on the back of the bottom plate 5;

[0038] A hook plate 7 is movably mounted on the back of the cabinet door 1 below the lock pad 4 and between the fixed lock rod 2.1 and the movable lock rod 2.2 through at least two positioning pins 9, and the positioning pins 9 can guide the upward and downward movement of the hook plate 7;

[0039] The lock plate 4 comprises a lock plate body 4.1, a lock plate key hole 4.11 is formed on the lock plate body 4.1, and a first hook plate movement guide groove 4.12 with an opening facing downward is formed on the lock plate body 4.1 below the lock plate key hole 4.11;

[0040] The bottom plate 5 comprises a bottom plate body 5.1, a bottom plate key hole 5.11 is formed on the bottom plate body 5.1, a second hook plate movement guide groove 5.12 and a first avoidance groove 5.13 are formed on the bottom plate body 5.1 below the bottom plate key hole 5.11, the lower end of the second hook plate movement guide groove 5.12 is connected to the upper end of the first avoidance groove 5.13, the width of the second hook plate movement guide groove 5.12 is smaller than the width of the first avoidance groove 5.13, and the opening of the first avoidance groove 5.13 faces downward;

[0041] The lock mounting plate 6 comprises a lock mounting plate body 6.1, on which a lock mounting plate key slot 6.11 and a second escape slot 6.12 are provided, the second escape slot 6.12 being located below the lock mounting plate key slot 6.11, the opening of the lock mounting plate key slot 6.11 facing upward, the opening of the second escape slot 6.12 facing downward, and a lock mounting plate rivet hole 6.13 being provided on the lock mounting plate body 6.1 between the lock mounting plate key slot 6.11 and the second escape slot 6.12;

[0042] The hook plate 7 comprises a hook plate body 7.1, a bolt block insertion hole 7.11 is provided on the hook plate body 7.1, at least two guide waist-shaped holes 7.12 are provided on the hook plate body 7.1 below the bolt block insertion hole 7.11, a blocking plate 7.2 is fixed to the lower end of the hook plate body 7.1, a blocking block is fixed to the upper surface of the blocking plate 7.2, a transition plate 7.3 is fixed to the upper end of the hook plate body 7.1, a connecting plate 7.4 is fixed to the upper end of the transition plate 7.3, a connecting plate rivet hole 7.41 is provided on the connecting plate 7.4, and the connecting plate 7.4 is located in front of the hook plate body 7.1 as a whole;

[0043] The locking tongue block 8 comprises a locking tongue block body 8.1, and a locking tongue block plug plate 8.11 is provided at the lower end of the front end surface of the locking tongue block body 8.1;

[0044] The lock pad keyhole 4.11 and the base plate keyhole 5.11 cooperate with the lock mounting plate key slot 6.2, the first hook plate movement guide slot 4.12 cooperates with the second hook plate movement guide slot 5.3, the first avoidance slot 5.13 cooperates with the second avoidance slot 6.12, the guide waist-shaped hole 7.12 cooperates with the corresponding positioning pin 9, and the lock tongue block plug plate 8.2 cooperates with the lock tongue block plug hole 7.11.

[0045] The blocking plate 7.2 is arranged perpendicularly to the hook plate body 7.1, and the connecting plate 7.4 is arranged parallel to the hook plate body 7.1.

[0046] When installing an ordinary lock 10 in Example 1, the lock tongue of the ordinary lock 10 is rectangular as a whole, and the installation process is as follows: first, fix the lock plate 4 to the back of the cabinet door 1 with screws, and then fix the base plate 5 to the back of the lock plate 4 with screws, and then use screws to fix the lock mounting plate 6 and the ordinary lock 10 to the base plate 5, and the lock tongue and lock tongue block 8 of the ordinary lock 10 are fixed by screws, and the lock tongue block plug plate 8.11 of the lock tongue block 8 is inserted into the lock tongue block plug hole 7.11 of 7.

[0047] The self-locking function principle of Example 1 is as follows:

[0048] After closing the cabinet door 1 of the safe, the handle 3 is rotated forward to make the movable locking rod 2.2 enter the locking rod hole. At this time, the lock is closed, and the lock tongue of the ordinary lock 10 drives the lock tongue block 8 to fall. When it falls to the maximum stroke of the lock tongue, the lock tongue block 8 just blocks the return position of the movable locking rod 2.2. At this time, if the handle 3 is rotated again, the movable locking rod 2.2 cannot be pushed back due to the obstruction of the lock tongue block 8, and the cabinet door 1 of the safe cannot be opened, forming a self-locking.

[0049] The unlocking action principle of Example 1 is as follows:

[0050] After inserting the key into the keyhole 4.11 of the lock pad, the keyhole 5.11 of the bottom plate and the key slot 6.2 of the lock mounting plate, the lock tongue of the conventional lock 10 drives the lock tongue block 8 and makes the lock tongue block 8 rise in the first avoidance groove 5.13 and the second avoidance groove 6.12, and the lock tongue block 8 drives the hook plate 7 and makes the connecting plate 7.4 of the hook plate 7 rise in the first hook plate movement guide groove 4.12 and the second hook plate movement guide groove 5.3 until the lock tongue block 8 is separated from the position between the movable lock rod 2.2 and the fixed lock rod 2.1, and the handle 3 is rotated in the reverse direction to retract the movable lock rod 2.2, and the cabinet door 1 of the safe can be opened.

[0051] Embodiment 1 The function of self-locking can still be achieved after the lock tongue of the common lock 10 is damaged. The specific principle is as follows:

[0052] Since the lock tongue and lock tongue block 8 of the ordinary lock 10 are fixed by screws, the lock tongue block plug plate 8.11 of the lock tongue block 8 is inserted into the lock tongue block plug hole 7.11 of 7, and the lock tongue must be destroyed starting from the cabinet door 1, so if you want to destroy the lock tongue, whether it is cutting or welding, you must first destroy the hook plate 7. At this time, the hook plate 7 falls, and the blocking plate 7.2 and the blocking block just block the return position of the movable lock rod 2.2. At this time, if the handle 3 is turned again, the movable lock rod 2.2 will not be able to be returned due to the obstruction of the lock tongue, and the safe cannot be opened, forming a self-locking. Example

[0053] A cabinet door structure that realizes self-locking of multiple locks, such as Figure 4-10As shown, it comprises a cabinet door 1, a fixed lock rod 2.1, a movable lock rod 2.2 and a handle 3; a movable lock rod seat and a horizontally arranged fixed lock rod 2.1 are fixed on the back of the cabinet door 1, a horizontally arranged movable lock rod 2.2 is movably installed in the movable lock rod seat, the movable lock rod 2.2 cooperates with the fixed lock rod 2.1, and a handle 3 for driving the movable lock rod 2.2 is rotatably installed on the cabinet door 1;

[0054] It also includes a lock plate 4, a bottom plate 5, a lock installation plate 6 and a hook plate 7; a lock plate 4 is fixed on the back of the cabinet door 1 corresponding to the fixed lock rod 2.1, a bottom plate 5 is fixed on the back of the lock plate 4, and a lock installation plate 6 is fixed on the back of the bottom plate 5;

[0055] A hook plate 7 is movably mounted on the back of the cabinet door 1 below the lock pad 4 and between the fixed lock rod 2.1 and the movable lock rod 2.2 through at least two positioning pins 9, and the positioning pins 9 can guide the upward and downward movement of the hook plate 7;

[0056] The lock plate 4 comprises a lock plate body 4.1, a lock plate key hole 4.11 is formed on the lock plate body 4.1, and a first hook plate movement guide groove 4.12 with an opening facing downward is formed on the lock plate body 4.1 below the lock plate key hole 4.11;

[0057] The bottom plate 5 comprises a bottom plate body 5.1, a bottom plate key hole 5.11 is formed on the bottom plate body 5.1, a second hook plate movement guide groove 5.12 and a first avoidance groove 5.13 are formed on the bottom plate body 5.1 below the bottom plate key hole 5.11, the lower end of the second hook plate movement guide groove 5.12 is connected to the upper end of the first avoidance groove 5.13, the width of the second hook plate movement guide groove 5.12 is smaller than the width of the first avoidance groove 5.13, and the opening of the first avoidance groove 5.13 faces downward;

[0058] The lock mounting plate 6 comprises a lock mounting plate body 6.1, on which a lock mounting plate key slot 6.11 and a second escape slot 6.12 are provided, the second escape slot 6.12 being located below the lock mounting plate key slot 6.11, the opening of the lock mounting plate key slot 6.11 facing upward, the opening of the second escape slot 6.12 facing downward, and a lock mounting plate rivet hole 6.13 being provided on the lock mounting plate body 6.1 between the lock mounting plate key slot 6.11 and the second escape slot 6.12;

[0059] The hook plate 7 comprises a hook plate body 7.1, a bolt block insertion hole 7.11 is provided on the hook plate body 7.1, at least two guide waist-shaped holes 7.12 are provided on the hook plate body 7.1 below the bolt block insertion hole 7.11, a blocking plate 7.2 is fixed to the lower end of the hook plate body 7.1, a transition plate 7.3 is fixed to the upper end of the hook plate body 7.1, a connecting plate 7.4 is fixed to the upper end of the transition plate 7.3, a connecting plate rivet hole 7.41 is provided on the connecting plate 7.4, the connecting plate 7.4 is located in front of the hook plate body 7.1 as a whole, and a blocking block is fixed to the upper surface of the blocking plate 7.2;

[0060] The lock pad key hole 4.11 and the base plate key hole 5.11 cooperate with the lock mounting plate key slot 6.2, the first hook plate movement guide slot 4.12 cooperates with the second hook plate movement guide slot 5.3, the first avoidance slot 5.13 cooperates with the second avoidance slot 6.12, the guide waist-shaped hole 7.12 cooperates with the corresponding positioning pin 9, and rivets are installed in the lock mounting plate rivet hole 6.13 and the connecting plate rivet hole 7.41.

[0061] The blocking plate 7.2 is arranged perpendicularly to the hook plate body 7.1, and the connecting plate 7.4 is arranged parallel to the hook plate body 7.1.

[0062] When installing the SWING LOCK lock 11 in Example 2, the lower end of the lock tongue of the SWING LOCK lock 11 is fan-shaped, and the installation process is as follows: first, fix the lock plate 4 to the back of the cabinet door 1 with screws, and then fix the base plate 5 to the back of the lock plate 4 with screws, hook the rivet screws on the lock mounting plate 6 into the connecting plate rivet holes 7.41 on the hook plate 7, and then fix the lock mounting plate 6 and the SWING LOCK lock 11 to the base plate 5 with screws.

[0063] The self-locking function principle of Example 2 is as follows:

[0064] After closing the door 1 of the safe, the handle 3 is rotated to drive the movable locking rod 2.2 into the locking rod hole. Because the lock tongue of the SWINGLOCK lock 11 is crescent-shaped, the lock tongue is not combined with the lock tongue block 8. At this time, the SWING LOCK lock 11 is closed, and the lock tongue of the SWINGLOCK lock 11 falls. When it falls to the maximum stroke of the lock tongue, the lock tongue just blocks the return position of the movable locking rod 2.2. At this time, if the handle 3 is rotated again, the movable locking rod 2.2 cannot be pushed back due to the obstruction of the lock tongue, and the safe cannot be opened, forming a self-locking.

[0065] The unlocking action principle of Example 2 is as follows:

[0066] After inserting the key into the keyhole 4.11 of the lock pad plate, the keyhole 5.11 of the bottom plate and the key slot 6.2 of the lock mounting plate and rotating the lock, the lock tongue of the SWING LOCK lock 11 drives the hook plate 7 and causes the connecting plate 7.4 of the hook plate 7 to rise in the first hook plate movement guide groove 4.12 and the second hook plate movement guide groove 5.3 until the lock tongue block 8 is separated from the position between the movable lock rod 2.2 and the fixed lock rod 2.1, and the handle 3 is rotated in the reverse direction to retract the movable lock rod 2.2, and the cabinet door 1 of the safe can be opened.

[0067] Embodiment 2 The SWING LOCK lock 11 can still self-lock after the lock tongue is damaged. The specific principle is as follows:

[0068] Since the SWING LOCK lock 11 is blocked by the hook plate 7 at the back and the lock tongue must be destroyed starting from the cabinet door 1, the hook plate 7 must be destroyed first in order to destroy the lock tongue, whether by cutting or welding. At this time, the hook plate 7 falls, and the blocking plate 7.2 and the blocking block just block the return position of the movable lock rod 2.2. At this time, if the handle 3 is turned again, the movable lock rod 2.2 cannot be returned due to the obstruction of the lock tongue, and the safe cannot be opened, forming a self-locking.

[0069] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A cabinet door structure capable of realizing self-locking of multiple locks, comprising a cabinet door (1), a fixed lock rod (2.1), a movable lock rod (2.2) and a handle (3); a movable lock rod seat and a transversely arranged fixed lock rod (2.1) are fixed on the back of the cabinet door (1); a transversely arranged movable lock rod (2.2) is movably installed in the movable lock rod seat; the movable lock rod (2.2) cooperates with the fixed lock rod (2.1); and a handle (3) for driving the movable lock rod (2.2) is rotatably installed on the cabinet door (1); Its characteristics are: It also comprises a lock plate (4), a bottom plate (5), a lock mounting plate (6), a hook plate (7) and a lock tongue block (8); the lock plate (4) is fixed on the back of the cabinet door (1) above the fixed lock rod (2.1); the bottom plate (5) is fixed on the back of the lock plate (4); and the lock mounting plate (6) is fixed on the back of the bottom plate (5); A hook plate (7) is movably mounted on the back of the cabinet door (1) below the lock pad (4) and between the fixed lock rod (2.1) and the movable lock rod (2.2) via at least two positioning pins (9); The locking plate (4) comprises a locking plate body (4.1), a locking plate key hole (4.11) is provided on the locking plate body (4.1), and a first hook plate movement guide groove (4.12) with an opening facing downward is provided on the locking plate body (4.1) below the locking plate key hole (4.11); The bottom plate (5) comprises a bottom plate body (5.1), a bottom plate keyhole (5.11) is provided on the bottom plate body (5.1), a second hook plate movement guide groove (5.12) and a first avoidance groove (5.13) are provided on the bottom plate body (5.1) below the bottom plate keyhole (5.11), the lower end of the second hook plate movement guide groove (5.12) is connected to the upper end of the first avoidance groove (5.13), the width of the second hook plate movement guide groove (5.12) is smaller than the width of the first avoidance groove (5.13), and the opening of the first avoidance groove (5.13) faces downward; The lock mounting plate (6) comprises a lock mounting plate body (6.1), a lock mounting plate key slot (6.11) and a second avoidance slot (6.12) are provided on the lock mounting plate body (6.1), the second avoidance slot (6.12) is located below the lock mounting plate key slot (6.11), the opening of the lock mounting plate key slot (6.11) faces upward, the opening of the second avoidance slot (6.12) faces downward, and a lock mounting plate rivet hole (6.13) is provided on the lock mounting plate body (6.1) between the lock mounting plate key slot (6.11) and the second avoidance slot (6.12); The hook plate (7) comprises a hook plate body (7.1), a lock tongue block insertion hole (7.11) is provided on the hook plate body (7.1), at least two guide waist-shaped holes (7.12) are provided on the hook plate body (7.1) below the lock tongue block insertion hole (7.11), a blocking plate (7.2) is fixed to the lower end of the hook plate body (7.1), a transition plate (7.3) is fixed to the upper end of the hook plate body (7.1), a connecting plate (7.4) is fixed to the upper end of the transition plate (7.3), a connecting plate rivet hole (7.41) is provided on the connecting plate (7.4), and the connecting plate (7.4) is located in front of the hook plate body (7.1) as a whole; The lock tongue block (8) comprises a lock tongue block body (8.1), and a lock tongue block plug plate (8.11) is provided at the lower end of the front end surface of the lock tongue block body (8.1); The lock pad keyhole (4.11) and the bottom plate keyhole (5.11) cooperate with the lock mounting plate key slot (6.2), the first hook plate movement guide slot (4.12) cooperates with the second hook plate movement guide slot (5.3), the first avoidance slot (5.13) cooperates with the second avoidance slot (6.12), the guide waist-shaped hole (7.12) cooperates with the corresponding positioning pin (9), and the lock tongue block plug plate (8.11) is plug-fitted with the lock tongue block plug hole (7.11).

2. The cabinet door structure for realizing multiple locks self-locking as claimed in claim 1, characterized in that: The blocking plate (7.2) is arranged perpendicularly to the hook plate body (7.1), and the connecting plate (7.4) is arranged parallel to the hook plate body (7.1).

3. A cabinet door structure capable of realizing self-locking of multiple locks, comprising a cabinet door (1), a fixed lock rod (2.1), a movable lock rod (2.2) and a handle (3); a movable lock rod seat and a transversely arranged fixed lock rod (2.1) are fixed on the back of the cabinet door (1); a transversely arranged movable lock rod (2.2) is movably installed in the movable lock rod seat; the movable lock rod (2.2) cooperates with the fixed lock rod (2.1); and a handle (3) for driving the movable lock rod (2.2) is rotatably installed on the cabinet door (1); Its characteristics are: It also includes a lock plate (4), a bottom plate (5), a lock mounting plate (6) and a hook plate (7); the lock plate (4) is fixed on the back of the cabinet door (1) above the fixed lock rod (2.1); the bottom plate (5) is fixed on the back of the lock plate (4); and the lock mounting plate (6) is fixed on the back of the bottom plate (5); A hook plate (7) is movably mounted on the back of the cabinet door (1) below the lock pad (4) and between the fixed lock rod (2.1) and the movable lock rod (2.2) via at least two positioning pins (9); The locking plate (4) comprises a locking plate body (4.1), a locking plate key hole (4.11) is provided on the locking plate body (4.1), and a first hook plate movement guide groove (4.12) with an opening facing downward is provided on the locking plate body (4.1) below the locking plate key hole (4.11); The bottom plate (5) comprises a bottom plate body (5.1), a bottom plate keyhole (5.11) is provided on the bottom plate body (5.1), a second hook plate movement guide groove (5.12) and a first avoidance groove (5.13) are provided on the bottom plate body (5.1) below the bottom plate keyhole (5.11), the lower end of the second hook plate movement guide groove (5.12) is connected to the upper end of the first avoidance groove (5.13), the width of the second hook plate movement guide groove (5.12) is smaller than the width of the first avoidance groove (5.13), and the opening of the first avoidance groove (5.13) faces downward; The lock mounting plate (6) comprises a lock mounting plate body (6.1), a lock mounting plate key slot (6.11) and a second avoidance slot (6.12) are provided on the lock mounting plate body (6.1), the second avoidance slot (6.12) is located below the lock mounting plate key slot (6.11), the opening of the lock mounting plate key slot (6.11) faces upward, the opening of the second avoidance slot (6.12) faces downward, and a lock mounting plate rivet hole (6.13) is provided on the lock mounting plate body (6.1) between the lock mounting plate key slot (6.11) and the second avoidance slot (6.12); The hook plate (7) comprises a hook plate body (7.1), a lock tongue block insertion hole (7.11) is provided on the hook plate body (7.1), at least two guide waist-shaped holes (7.12) are provided on the hook plate body (7.1) below the lock tongue block insertion hole (7.11), a blocking plate (7.2) is fixed to the lower end of the hook plate body (7.1), a transition plate (7.3) is fixed to the upper end of the hook plate body (7.1), a connecting plate (7.4) is fixed to the upper end of the transition plate (7.3), a connecting plate rivet hole (7.41) is provided on the connecting plate (7.4), and the connecting plate (7.4) is located in front of the hook plate body (7.1) as a whole; The lock pad keyhole (4.11) and the bottom plate keyhole (5.11) cooperate with the lock mounting plate key slot (6.2), the first hook plate movement guide slot (4.12) cooperates with the second hook plate movement guide slot (5.3), the first avoidance slot (5.13) cooperates with the second avoidance slot (6.12), the guide waist-shaped hole (7.12) cooperates with the corresponding positioning pin (9), and rivets are installed in the lock mounting plate rivet hole (6.13) and the connecting plate rivet hole (7.41).

4. The cabinet door structure for realizing multiple locks self-locking as claimed in claim 3, characterized in that: The blocking plate (7.2) is arranged perpendicularly to the hook plate body (7.1), and the connecting plate (7.4) is arranged parallel to the hook plate body (7.1).