Key box coded lock

Abstract

The utility model discloses a key box coded lock which comprises a box body, a protective shell and a lock body, the protective shell comprises a protective cover and a rear shell body, the box body comprises a fixed box, a lock face box and an overturning cover, a lock hook is further arranged on the overturning cover in an extending mode, the key box coded lock further comprises a U-shaped lock bolt, and a lock piece used for limiting the U-shaped lock bolt is further arranged in the box body. A screw groove is formed in the fixed box, a connecting column is arranged on the face locking box, a screw piece extending into the screw groove is in threaded fit with the connecting column to fix the fixed box and the face locking box, the box body is further provided with an anti-disassembly piece, and the anti-disassembly piece is embedded in the screw groove and movably limited through a radial rod; according to the key box coded lock, the defects of a lock body in the prior art are overcome by arranging the anti-disassembly piece and other structures, the anti-disassembly safety of the coded lock box is improved, in addition, the box body and the protective shell are installed and fixed through the buckles, the structure is simpler, use is convenient, and the use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of password locks, in particular to a key box password lock. Background Art

[0002] Nowadays, with the rapid improvement of economic level, people's anti-theft demand is also increasing. The lock market is more prosperous than any previous era. Various locks have emerged, such as password locks, fingerprint locks, etc. Since locks with keys are better than other locks in anti-theft and cost-effective, they are adopted by most people, but keys need to be carried with you. Each lock has one or more keys. There are as many keys as there are locked doors in the home. It is common to see many people hanging keys around, which is not only unsightly, but also easy to lose when carrying keys with them. And if multiple people use the same lock, multiple keys need to be configured. Once any key is lost, the security of the lock will be a problem, which brings inconvenience to users and wastes resources.

[0003] Therefore, a key box that can hold keys and has its own password is designed and applied as the demand demands. This type of key box with a password lock is often installed on or beside a door or in a fixed position. Multiple users lock the box with the keys through the password lock. Its main function is to store keys, so that people do not need to carry keys at all times. By unlocking the password lock, they can get the key inside for unlocking, which greatly facilitates people's use. For example, the Chinese patent applied for by the applicant in the previous design: CN202120016734.4 A push-button password key box provides a key box with a push-button password lock that can well achieve the above-mentioned effect, but this type of safety box is found to be easily disassembled by force during use, and its safety needs to be strengthened. Utility Model Content

[0004] In view of the prior art, the purpose of the utility model is to provide a key box password lock structure with multiple protections to effectively protect the keys in the box and prevent the key box from being violently disassembled.

[0005] In order to achieve the above objectives, the technical solution adopted by the utility model is: a key box password lock, comprising a box body, a protective shell and a lock body, the protective shell comprising a protective cover and a rear shell body, the box body comprising a fixed box, a lock face box and a flip cover, the fixed box and the lock face box constitute a key cavity, the flip cover is also provided with a lock hook, the lock body is fixed on the flip cover for limiting the lock hook, the lock hook cooperates with the lock face box to limit the hinged flipping of the flip cover relative to the fixed box and the lock face box, and also includes a U-shaped lock bolt, the box body is also provided with a lock piece for limiting the U-shaped lock bolt, the fixed box is provided with a screw groove, the lock face box is provided with a connecting column, the screw piece extending through the screw groove cooperates with the connecting column thread to fix the fixed box and the lock face box, and the box body is also provided with an anti-disassembly component, the anti-disassembly component is embedded in the screw groove and is movably limited by a radial rod.

[0006] As a further configuration of the above scheme, the locking face box and the fixing box are connected via a hinge rod, the hinge seat on the locking face box has a through hole, and a notch is provided in the middle of the hinge seat.

[0007] As a further configuration of the above scheme, a radial hole is provided on the inner wall of the screw groove, and the radial hole is opened toward the direction of the connecting key cavity. Both ends of the radial rod extend into the radial grooves provided on the radial plug-in anti-disassembly component of the screw groove to limit it.

[0008] As a further configuration of the above scheme, the protective cover is hinged on the rear shell, a hinged A-pillar is arranged on the protective cover, a hinged B-pillar is correspondingly arranged on the rear shell, and the hinged A-pillar and the hinged B-pillar are connected by a hinged column shaft.

[0009] As a further configuration of the above solution, a limit slot is provided on the articulated column shaft, a notch is provided at the articulated B-pillar, and a limit slot shaft matching the limit slot is provided.

[0010] As a further configuration of the above scheme, a number of bayonet holes and matching card blocks are provided on the rear shell body and the fixed box, and the bayonet holes and matching card blocks are used to fix the rear shell body and the fixed box to limit the separation of the two. The protective cover and the lock face box are respectively provided with matching card parts and card slots, and the inner walls of the card slots are set as inclined surfaces.

[0011] Beneficial effect: The key box combination lock of the utility model improves the shortcomings of the lock body in the prior art by providing anti-dismantling parts and other structures, and enhances the anti-dismantling security of the combination lock box. In addition, this embodiment uses snap buckles to install and fix the box body and protective shell, which has a simpler structure and is easy to use, meeting usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the sealing lock structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the sealing lock of the utility model in the open state.

[0014] Figure 3 This is the internal structure diagram of the password lock of the utility model.

[0015] Figure 4 This is a schematic diagram of the key chamber of the password lock of the utility model.

[0016] Figure 5 This is a cross-sectional view of the anti-dismantling structure of the password lock of the utility model.

[0017] Figure 6 This is a schematic diagram of the hinged structure of the password lock protective shell of the utility model.

[0018] Figure 7 The utility model is a schematic diagram of the interior of the lock face box of the password lock.

[0019] Figure 8 It is a schematic diagram of the protective cover of the utility model.

[0020] Fig. 9 It is a schematic diagram of the rear housing of the utility model.

[0021] 1. Lock body; 2. Lock plate; 3. Lock plate; 4. Lock plate; 5. Keyway; 6. Anti-disassembly component; 7. Protective cover; 8. Protective cover; 9. Lock hook; 10. Key chamber; 11. Anti-disassembly component; 12. Lock case; 13. Lock plate; 14. Lock hook; 15. Keyway; 17. Anti-disassembly component; 14. Lock plate; 15. Keyway; 16. Anti-disassembly component; 17. Anti-disassembly component; 18. Lock plate; 19. Lock plate; 20. Lock plate; 21. Lock plate; 22. Lock plate; 23. Lock plate; 24. Lock plate; 25. Lock plate; 26. Lock plate; 27. Lock plate; 28. Lock plate; 29. ​​Lock plate; 30. Lock plate; 31. Lock body; 32. Lock plate; 33. Lock plate; 34. Lock plate; 35. Lock plate; 36. Lock plate; 37. Lock plate; 38. Lock plate; 39. Lock plate; 40. Lock plate; 41. Lock plate; 42. Lock plate; 43. Lock plate; 44. Lock plate; 45. Lock plate; 46. Lock plate; 47. Lock plate; 48. Lock plate; 49. Lock plate; 50. Lock plate DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] like Figure 1-9 The key box password lock shown in the figure comprises a box body 1, a protective shell 2 and a lock body 3, wherein the protective shell 2 comprises a protective cover 21 and a rear shell 22, the box body 1 comprises a fixed box 11, a lock face box 12 and a flip cover 13, the fixed box 11 and the lock face box 12 constitute a key chamber 15, the flip cover 13 is further provided with a lock hook 14, the lock body 3 is fixed on the flip cover 13 for limiting the lock hook 14, the lock hook 14 cooperates with the lock face box 12 to limit the flip cover 13 relative to the fixed box 11 and the lock face box 12 The hinged flipping of the face box 12 also includes a U-shaped locking bolt 4. The box body 1 is also provided with a locking member 5 for limiting the U-shaped locking bolt 4. The fixed box 11 is provided with a screw groove 111, and the lock face box 12 is provided with a connecting column 121. The screw member 112 inserted into the screw groove 111 is threadedly matched with the connecting column 121 to fix the fixed box 11 and the lock face box 12. The box body 1 is also provided with an anti-disassembly member 17, which is embedded in the screw groove 111 and is movable limited by a radial rod 113.

[0024] As a further configuration of the above solution, the locking face box 12 is connected to the fixing box 11 via a hinge rod 10, the hinge seat 101 on the locking face box 12 has a through hole 102, and a notch is provided in the middle of the hinge seat 101.

[0025] As a further configuration of the above scheme, the inner wall of the screw groove 111 is provided with a radial hole 116, and the radial hole 116 is opened toward the key chamber 15. Both ends of the radial rod 113 extend into the radial groove 118 provided on the radial plug-in anti-disassembly component 17 of the screw groove 111 to limit it.

[0026] As a further configuration of the above scheme, the protective cover 21 is hinged on the rear shell 22, a hinged A-pillar 211 is arranged on the protective cover 21, a hinged B-pillar 221 is correspondingly arranged on the rear shell 22, and the hinged A-pillar 211 and the hinged B-pillar 221 are connected by a hinged column shaft 210.

[0027] As a further configuration of the above solution, a limit slot 2101 is provided on the articulated column shaft 210 , a notch 2210 is provided at the articulated B-pillar 221 , and a limit slot shaft 2102 matching the limit slot 2101 is provided.

[0028] As a further configuration of the above scheme, a plurality of bayonet holes 51 and matching card blocks 52 are provided on the rear shell body 22 and the fixing box 11, and the bayonet holes 51 and matching card blocks 52 are used to fix the rear shell body 22 and the fixing box 11 to limit the separation of the two. The protective cover 21 and the lock face box 12 are respectively provided with matching card members 54 and card slots 53, and the inner walls of the card slots 53 are set as inclined surfaces 55.

[0029] As a key box combination lock of the above embodiment, Figure 1-3 The box body 1, the protective shell 2 and the lock body 3 are shown. The combination lock of this embodiment uses the protective shell 2 to cover and protect the box body 1. The box body 1 includes a fixed box 11, a lock face box 12 and a flip cover 13. The fixed box 11 and the lock face box 12 constitute a key chamber 15. The flip cover 13 is used to control the opening and closing of the key chamber 15. The opening and closing control is mainly performed by the lock body 3 arranged on the flip cover 13 to limit the lock hook 14 on the flip cover 13 controlled by the knob. It is worth noting that the technology of the lock body 3 and the lock hook 14 of this embodiment has been disclosed in the prior art. The lock body 3 controls the limiting plate abutting the lock hook 14. When the password is correct, the limiting plate can be moved downward, so that the lock hook 14 can be rotated based on the knob to enter the flip cover 13 to eliminate the interference with the lock face box 12, so that the flip cover 13 can flip to open the key chamber 15. In addition, the lock body 3 is also provided with an elastic mechanism, which can reset the state of the lock hook 14 and the lock body 3.

[0030] The combination lock of this embodiment is also provided with a U-shaped lock bolt 4, and the box body 1 is also provided with a lock 5 for limiting the U-shaped lock bolt 4. Figure 2 and Figure 4 As shown, the key chamber 15 can be controlled from the inside to release the limit on the U-shaped bolt 4. As mentioned above, the U-shaped bolt 4 can be unlocked only after the password is correctly released, ensuring the safety of the password lock.

[0031] It is worth noting that the fixing box 11 and the locking box 12 of the box body 1 of this embodiment are fixed by screws, and the fixing box 11 is also covered with a rear shell 22. Figure 5 and 7 The fixing box 11 shown in the figure is provided with a screw groove 111, and the lock face box 12 is provided with a connecting column 121. The screw 112 inserted into the screw groove 111 is threadedly matched with the connecting column 121 to fix the fixing box 11 and the lock face box 12. The box body 1 is also provided with an anti-disassembly component 17, which is embedded in the screw groove 111 and is movably limited by a radial rod 113. The inner wall of the screw groove 111 of this embodiment is provided with a radial hole 116, and the radial hole 116 is opened in the direction of the key chamber 15. The two ends of the radial rod 113 are respectively extended into the screw groove 111 and radially inserted into the radial groove 118 provided on the anti-disassembly component 17 to limit it. The principle is that when in use, the lock is firstly The connecting column 121 of the face box 12 is aligned with the screw groove 111 of the fixing box 11. After the two are tightened, the fixing box 11 and the lock face box 12 are fixed by locking them from the outside of the fixing box 11 with screws. Then, the anti-disassembly component 17 is taken out and placed in the screw groove 111, and the two ends of the radial rod 113 are respectively passed through the radial holes 116 from the key cavity 15, and inserted into the radial grooves 118 of the two anti-disassembly components 17 (the radial rod 113 needs to be slightly bent and deformed). The anti-disassembly component 17 is limited by the radial rod 113 so that it cannot fall out of the screw groove 111. At this time, the anti-disassembly component 17 is located behind the screw, which prevents the screw from loosening and disassembly, ensuring that the password lock is protected from being disassembled before the radial rod 113 is removed for non-password unlocking.

[0032] As a further configuration of the above scheme, the lock face box 12 is connected to the fixed box 11 through a hinge rod 10, the hinge seat 101 on the lock face box 12 has a through hole 102, and a notch is set in the middle of the hinge seat 101. The notch setting on the hinge seat 101 in this embodiment can effectively avoid the problem in the prior art that the thickness of the hinge seat 101 is too large, which may cause the hole axis to be misaligned when drilling the through hole 102, resulting in defective products.

[0033] As a further configuration of the above scheme, the protective cover 21 is hinged on the rear shell 22, a hinged A-pillar 211 is arranged on the protective cover 21, a hinged B-pillar 221 is correspondingly arranged on the rear shell 22, and the hinged A-pillar 211 and the hinged B-pillar 221 are connected by a hinged column shaft 210.

[0034] As a further arrangement of the above scheme, a limiting slot 2101 is arranged on the articulated column shaft 210, a notch 2210 is arranged at the articulated B-pillar 221, and a limiting shaft 2102 matching the limiting slot 2101 is arranged. In order to prevent the articulated column shaft 210 from being easily loosened and disengaged axially during use in the prior art, thereby causing the rear shell body 22 and the protective cover 21 to be unable to be hingedly and swingably connected, a limiting shaft 2102 structure is arranged in the present embodiment, and after the articulated column shaft 210 is extended, it is stuck in the limiting slot 2101, thereby limiting the axial movement of the articulated column shaft 210.

[0035] As a further configuration of the above scheme, a plurality of bayonet holes 51 and matching card blocks 52 are provided on the rear shell body 22 and the fixed box 11, and the bayonet holes 51 and matching card blocks 52 are used to fix the rear shell body 22 and the fixed box 11 to limit the separation of the two. The protective cover 21 and the lock face box 12 are respectively provided with matching card members 54 and card slots 53, and the inner wall of the card slot 53 is set as an inclined surface 55. Through the configuration of the bayonet holes 51 and the matching card blocks 52, the matching card members 54 and the card slots 53, the connection between the rear shell body 22 and the fixed box 11 and the protective cover 21 and the lock face box 12 is buckled, and the protective cover 21 and the lock face box 12 are opened and closed during normal use. Therefore, The mating clip 54 arranged on the inner wall of the protective cover 21 has slopes on both sides, and the inner wall of the slot 53 is provided with a slope 55 to cooperate, so that it can be inserted and removed more easily, and after being inserted, based on the cooperation between the raised mating clip 54 and the recessed slot 53, a certain limit lock is formed, and the cover will not be easily opened without external force.

[0036] The assembly steps of the key box combination lock of this embodiment are as follows:

[0037] A. First, connect the flip cover 13 and the fixed box 11 through the hinge rod 10, and then connect and fix the lock face box 12 and the fixed box 11. First, insert the connecting column 121 into the corresponding notch of the fixed box 11, and then tighten the screws from the back side of the fixed box 11. Then, install the anti-disassembly component 17 and the radial rod 113 in sequence as described above, and then install the lock component 5 into the fixed box 11, and screw it from the side of the fixed box 11. Finally, fix the hanging plate for hanging the key in the key cavity 15;

[0038] B. Then align the rear housing 22 with the rear of the fixing box 11 and press it in, match and install the bayonet 51 and the matching block 52 so that the two are buckled and fixed, and then insert the U-shaped lock bolt 4 into the corresponding hole groove;

[0039] C. Take the limit card shaft 2102 and install it into the notch 2210. Then, insert the hinged column shaft 210 axially from the hinged A column 211 and the hinged B column 221, stringing the two together. When the limit card shaft 2102 reaches the center, it just falls into the limit card shaft 2101. It is worth noting that when the hinged column shaft 210 is inserted, the limit card shaft 2102 is pressed against the inner wall of the notch 2210, and Figure 6 As shown, the hinge column shaft 210 is slightly deformed and sunken to the right, and when the hinge column shaft 210 moves to the point where the limit clamping shaft 2102 is directly opposite to the limit clamping groove 2101, the limit clamping shaft 2102 is snapped back in, thus completing the axial limit of the hinge column shaft 210;

[0040] D. After the assembly as described above, the key box combination lock of this embodiment is assembled, and the user can fix it to a ring-shaped place such as a door frame or door handle through the U-shaped lock bolt 4 according to needs. When necessary, the user can open the protective cover 21, and then unlock the lock body 3 through the password, take out the key from the inside, and operate the lock part 5 to separate the U-shaped lock bolt 4 from the box body 1, so as to change the hanging position.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A key box combination lock, comprising a box body (1), a protective shell (2) and a lock body (3), wherein the protective shell (2) comprises a protective cover (21) and a rear shell (22), and the box body (1) comprises a fixed box (11), a lock face box (12) and a flip cover (13), characterized in that: The fixed box (11) and the lock face box (12) form a key chamber (15); the flip cover (13) is further provided with a lock hook (14); the lock body (3) is fixed to the flip cover (13) for limiting the lock hook (14); the lock hook (14) cooperates with the lock face box (12) to limit the hinged flipping of the flip cover (13) relative to the fixed box (11) and the lock face box (12); and a U-shaped lock bolt (4) is further provided in the box body (1) for limiting the U-shaped lock bolt ( 4) of the locking member (5), the fixing box (11) is provided with a screw groove (111), the locking face box (12) is provided with a connecting column (121), the screw member (112) inserted into the screw groove (111) and the connecting column (121) are threadedly matched to fix the fixing box (11) and the locking face box (12), the box body (1) is further provided with an anti-disassembly member (17), the anti-disassembly member (17) is embedded in the screw groove (111) and is movable and limited by a radial rod (113).

2. A key box combination lock according to claim 1, characterized in that: The locking face box (12) and the fixed box (11) are connected via a hinge rod (10); the hinge seat (101) on the locking face box (12) has a through hole (102), and a notch is provided in the middle of the hinge seat (101).

3. A key box combination lock according to claim 1, characterized in that: The inner wall of the screw groove (111) is provided with a radial hole (116), the radial hole (116) is opened in the direction of the connecting key cavity (15), and the two ends of the radial rod (113) respectively extend into the radial grooves (118) provided on the anti-disassembly component (17) of the screw groove (111) to limit the position thereof.

4. A key box combination lock according to claim 1, characterized in that: The protective cover (21) is hinged on the rear housing (22); a hinged A-pillar (211) is arranged on the protective cover (21); a hinged B-pillar (221) is correspondingly arranged on the rear housing (22); the hinged A-pillar (211) and the hinged B-pillar (221) are connected by a hinged column shaft (210).

5. A key box combination lock according to claim 4, characterized in that: The hinged column shaft (210) is provided with a limit slot (2101), the hinged B-pillar (221) is provided with a notch (2210) and a limit slot shaft (2102) matching the limit slot (2101) is provided.

6. A key box combination lock according to claim 1, characterized in that: A plurality of bayonet holes (51) and matching card blocks (52) are provided on the rear housing (22) and the fixing box (11), and the bayonet holes (51) and the matching card blocks (52) are used to fix the rear housing (22) and the fixing box (11) to prevent the two from being separated, and matching card members (54) and card slots (53) are provided on the protection cover (21) and the lock face box (12), respectively, and the inner wall of the card slot (53) is provided as an inclined surface (55).

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