Mounting structure of mechanical coded lock and mechanical coded lock

Abstract

The invention relates to the technical field of locks, and discloses a mounting structure of a mechanical coded lock and the mechanical coded lock, the mounting structure of the mechanical coded lock comprises a lock shell, the back side of the lock shell is provided with a threaded sleeve detachably connected with the lock shell, at least part of the threaded sleeve protrudes out of the back side of the lock shell, and the periphery of the threaded sleeve is provided with an external thread; the fixing nut is movably arranged on the thread bushing and is in threaded connection with the external thread on the thread bushing; when the mechanical coded lock is installed on a door body, the threaded sleeve is arranged in the door body in a penetrating mode, and the fixing nut can be rotated to enable the fixing nut to move along the external threads on the threaded sleeve so as to fix the mechanical coded lock on the door body. The mechanical coded lock has the advantages of being convenient to install, good in universality and convenient to update and upgrade.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to an installation structure of a mechanical password lock and a mechanical password lock. Background Art

[0002] Mechanical password locks can be unlocked with the correct mechanical password. Compared with traditional key locks, mechanical password locks can be keyless. Compared with electronic locks, mechanical password locks can be non-electric. Therefore, they have the advantages of convenient use and good stability.

[0003] Existing mechanical password locks are generally installed by fixing the lock housing to a cabinet door or box door, etc. However, in the actual installation process, the existing mechanical password locks are inconvenient to install and have poor versatility; and when it is necessary to update and upgrade the traditional mechanical lock to a mechanical password lock, the installation is also very troublesome. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an installation structure of a mechanical password lock and a mechanical password lock which are easy to install, have good versatility, and are easy to update and upgrade.

[0005] The technical solution adopted by the present invention to solve the technical problem is to provide an installation structure of a mechanical password lock, comprising:

[0006] A lock housing, wherein a threaded sleeve detachably connected to the lock housing is disposed on the back side of the lock housing, the threaded sleeve at least partially protrudes from the back side of the lock housing, and the outer periphery of the threaded sleeve has an external thread;

[0007] A fixing nut, movably arranged on the threaded sleeve and threadedly connected to the external thread on the threaded sleeve;

[0008] When the mechanical code lock is installed on the door body, the threaded sleeve is inserted into the door body, and the fixing nut can be rotated to move the fixing nut along the external thread on the threaded sleeve to fix the mechanical code lock on the door body.

[0009] Furthermore, the specifications of the external thread on the threaded sleeve and the internal thread of the fixing nut are M19 or M18.

[0010] Furthermore, the mechanical password lock is provided with a lock core module, and the lock core module is inserted into the threaded sleeve;

[0011] When the threaded sleeve is removed from the lock housing, the lock core module is at least partially exposed on the back side of the lock housing.

[0012] Furthermore, a hanging platform is arranged at one end of the threaded sleeve close to the lock housing, and the hanging platform is detachably fixedly connected to the lock housing.

[0013] Furthermore, the hanging platform is provided with a plurality of through holes, and the lock housing is provided with a plurality of first threaded holes corresponding one-to-one to the through holes;

[0014] A screw or a bolt passes through the through hole and is threadedly connected in the first threaded hole to detachably fix the hanging platform on the lock housing.

[0015] Furthermore, a back plate is disposed on the back side of the lock housing, and a mounting groove is provided on the back plate, the hanging platform is disposed in the mounting groove, and the hanging platform is flush with the back plate.

[0016] Furthermore, two convex strips are symmetrically arranged on the outer circumference of the threaded sleeve, and the two convex strips separate the external thread on the threaded sleeve into two parts, and a notch is formed at one end of the two parts of the external thread close to the two convex strips respectively;

[0017] When the threaded sleeve is inserted into the door body, it can be positioned and stopped by the two convex strips.

[0018] Furthermore, a stud is disposed on the back side of the lock housing, and a second threaded hole is provided on the stud;

[0019] When the mechanical combination lock is installed on the door body, a screw or a bolt can pass through the door body and be threadedly connected in the second threaded hole to fix the lock housing on the door body.

[0020] The technical solution adopted by the present invention to solve the technical problem is to provide a mechanical password lock, which is characterized by comprising:

[0021] The above-mentioned mounting structure;

[0022] A lock core module, movably disposed on the lock housing, comprising a lock core;

[0023] A locking mechanism is arranged on the lock housing, comprising a plurality of password wheels, and the plurality of password wheels are movably arranged on the lock housing; the locking mechanism can lock the lock core module, and when the plurality of password wheels are rotated to a correct password, the locking mechanism releases the lock core module;

[0024] A knob is rotatably disposed on the lock housing and connected to the lock core module; when the lock mechanism releases the lock core module, rotating the knob can drive the lock core module to rotate;

[0025] The knob is provided with a cover body which is detachably fixedly connected thereto, and the cover body covers the lock core; when the cover body is removed from the knob, the keyhole of the lock core can be exposed, and a mechanical emergency key matching the lock core can be inserted into the keyhole to rotate the lock core module.

[0026] Furthermore, the cover body is provided with a positioning protrusion and an elastic buckle;

[0027] When the cover body is fixed on the knob, the positioning protrusion positions the cover body on the knob, and the elastic buckle is snapped onto the knob; when the elastic buckle is driven to elastically deform, the elastic buckle can be detached from the knob, so that the cover body can be removed from the knob.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] 1. In the present invention, a threaded sleeve is disposed on the back side of the lock housing and is detachably fixedly connected thereto. The fixing nut is movably arranged on the threaded sleeve. When the mechanical password lock needs to be installed on the door body, the threaded sleeve can be inserted into the door body, and the fixing nut can be rotated to fix the lock housing on the door body, thereby fixing the mechanical password lock on the door body. The mechanical password lock is easy to install, and when some traditional mechanical locks need to be updated to mechanical password locks, the lock core can be directly taken out, the threaded sleeve of the mechanical password lock can be removed, and the lock can be directly installed for use, thereby realizing keyless and non-electrical operation and convenient upgrade and update.

[0030] 2. In the present invention, the specifications of the external thread on the threaded sleeve and the internal thread of the fixing nut are set to M19 or M18 to unify the installation holes on the door body, which are consistent with the installation holes of some mechanical locks and electronic locks on the market, making it convenient to replace existing locks on the market, and can facilitate mass production of door bodies (such as cabinet doors or box doors).

[0031] 3. In the present invention, when the threaded sleeve is removed from the lock housing, the lock core is partially exposed, and it is still a complete product. In addition, the threaded sleeve is detachably fixed to the lock housing through the hanging platform, and is positioned and stopped by two convex strips during installation. When processing the external thread, a notch is provided to ensure that the external thread is easy to clean, and the assembly, disassembly, fixing and processing are all convenient.

[0032] 4. In the present invention, a cover is provided on the knob of the mechanical password lock, and the cover shields the lock core inside, hides the emergency keyhole of the mechanical password lock, avoids exposure, and improves the appearance. When emergency unlocking is required by mechanical key, the elastic buckle on the cover is separated from the knob, and the cover is removed from the knob to expose the keyhole on the lock core, and the matching mechanical emergency key is inserted into the keyhole to realize emergency unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the mechanical combination lock installation structure of the present invention (with the combination wheel and knob retained);

[0034] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0035] Figure 3 It is a structural schematic diagram of a threaded sleeve;

[0036] Figure 4 for Figure 3 A schematic diagram of the structure from another perspective;

[0037] Figure 5 It is a structural schematic diagram of a first implementation method of a mechanical password lock;

[0038] Figure 6 for Figure 5 Schematic diagram of the structure of the mechanical combination lock after removing the threaded sleeve;

[0039] Figure 7 for Figure 5 A schematic diagram of the structure of a mechanical password lock when the cover on the knob is removed and the lock is unlocked by a mechanical emergency key;

[0040] Figure 8 A half-section schematic diagram of the positioning protrusion and elastic buckle at the rear edge of the knob and the cover body after assembly;

[0041] Fig. 9 is a schematic diagram of the structure of the cover;

[0042] Fig.10 for Figure 5 A schematic diagram of the structure of the locking mechanism in a mechanical password lock;

[0043] Fig.11 It is a structural schematic diagram of a second implementation method of a mechanical password lock;

[0044] Fig.12 for Fig.11 A schematic diagram of the structure of the locking mechanism in a mechanical password lock;

[0045] Fig.13 for Fig.12 A schematic diagram of the structure from another perspective;

[0046] Fig.14 It is a structural schematic diagram of a third implementation mode of a mechanical password lock;

[0047] Fig.15 for Fig.14 A schematic diagram of the structure of the locking mechanism in a mechanical password lock;

[0048] Fig.16It is a structural schematic diagram of a fourth implementation mode of a mechanical combination lock;

[0049] Fig.17 for Fig.16 Schematic diagram of the structure of the locking mechanism in the mechanical password lock.

[0050] In the figure:

[0051] 1. Lock housing; 10. Back plate; 101. Mounting slot; 102. First threaded hole; 11. Stud; 110. Second threaded hole;

[0052] 2. threaded sleeve; 20. external thread; 21. hanging platform; 210. through hole; 22. convex strip; 23. notch;

[0053] 3. Fix the nut;

[0054] 4. Lock core module; 40. Lock tongue;

[0055] 5. Locking mechanism; 50. Code wheel; 51. Locking member;

[0056] 6. Knob; 60. Cover; 601. Positioning protrusion; 602. Elastic buckle; 61. Small hole;

[0057] 7. Mechanical emergency key. DETAILED DESCRIPTION

[0058] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0059] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0060] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0063] Mechanical password locks are commonly found on cabinet doors, box doors, etc. During use, they are generally unlocked using a mechanical password. Compared to traditional key locks, they eliminate the worry of being unable to unlock due to forgetting to bring the key. Compared to electronic locks, they can be non-electrical, have good stability, and a long service life. Preferably, when the user forgets the correct password of the mechanical seal lock, in order to ensure that the mechanical password lock can still be opened, an emergency unlocking structure is generally provided on the mechanical password lock. For example, some mechanical password locks are equipped with a mechanical emergency key 7. When the correct password is forgotten, the lock can be unlocked using the mechanical emergency key 7. Some mechanical password locks are equipped with a password retrieval function.

[0064] The existing mechanical password locks are inconvenient to install and have poor versatility. It is difficult to mass-produce door bodies (such as cabinet doors or box doors) by opening installation holes of different sizes on the door body (such as cabinet doors or box doors). When it is necessary to update and upgrade the traditional mechanical lock to a mechanical password lock, it is also troublesome to update and upgrade the existing mechanical password lock.

[0065] In view of this, the installation structure of the mechanical password lock and the mechanical password lock provided by the present application, such as Figure 1-Figure 2 As shown, the installation structure of the mechanical combination lock mainly includes: a lock housing 1, a threaded sleeve 2 and a fixing nut 3. The back side of the lock housing 1 is provided with a threaded sleeve 2 detachably connected thereto. The threaded sleeve 2 at least partially protrudes from the back side of the lock housing 1, and the outer periphery of the threaded sleeve 2 has an external thread 20. The fixing nut 3 is movably arranged on the threaded sleeve 2 and is threadedly connected to the external thread 20 on the threaded sleeve 2. When the mechanical combination lock is installed on the door body, the threaded sleeve 2 is inserted into the door body, and the fixing nut 3 can be rotated to move the fixing nut 3 along the external thread 20 on the threaded sleeve 2 to fix the mechanical combination lock on the door body.

[0066] In actual use, the back side of the lock shell 1 of the present application is provided with a threaded sleeve 2 which is detachably fixedly connected thereto, and the fixing nut 3 is movably arranged on the threaded sleeve 2. When the mechanical combination lock needs to be installed on the door body, the threaded sleeve 2 can be inserted into the door body, and the lock shell 1 can be fixed on the door body by rotating the fixing nut 3. The fixing nut 3 and the lock shell 1 clamp the door body, and then the mechanical combination lock is fixed on the door body. A one-way ratchet (marked in the figure) is provided on the end face of the fixing nut 3 close to the lock shell 1 to prevent the fixing nut 3 from loosening. When the fixing nut 3 is tightened, the one-way ratchet bites into the door body to ensure that the fixing nut 3 will not rotate in the loose direction, thereby ensuring the fixing effect of the mechanical combination lock. The mechanical combination lock is simple to install, and when some traditional mechanical locks need to be updated to mechanical combination locks, the lock core of the traditional mechanical lock can be directly taken out, and the threaded sleeve 2 of the mechanical combination lock in the present application can be removed and directly installed for use, thereby realizing keyless and non-electrical operation and convenient upgrading and updating. That is, combined with Figure 5 and Figure 6 As shown, the mechanical password lock of the present application is provided with a lock core module 4, which is inserted into the threaded sleeve 2, and a lock tongue 40 is detachably connected to the end of the lock core module 4 away from the lock housing 1. The lock tongue 40 is locked on the door body to achieve locking in the mechanical password lock, and the lock tongue 40 can also be rotated to unlock the door body. When the threaded sleeve 2 is removed from the lock housing 1, the lock core module 4 is at least partially exposed on the back side of the lock housing 1. That is, in the present application, when the threaded sleeve 2 is removed from the lock housing 1, the lock core is partially exposed, and it is still a complete product, which is convenient for updating and upgrading traditional mechanical locks or electronic locks.

[0067] Among them, in the present application, the specifications of the external thread 20 on the threaded sleeve 2 and the internal thread of the fixing nut 3 are M19 or M18, that is, the specifications of the external thread 20 and the internal thread are both M19, or the specifications of the external thread 20 and the internal thread are both M18, to ensure that the external thread 20 on the fixing nut 3 is adapted to the external thread 20 on the threaded sleeve 2. Setting the thread specifications of both to M19 or M18 can facilitate the unification of the installation holes on the door body (such as a cabinet door or a box door), which is consistent with the installation holes of some mechanical locks and electronic locks on the market, and is convenient for replacing existing locks on the market, and can facilitate the mass production of door bodies (such as cabinet doors or box doors).

[0068] Specifically, combined Figure 2-Figure 4As shown, the threaded sleeve 2 of the present application is provided with a hanging platform 21 at one end close to the lock shell 1, and the hanging platform 21 is detachably fixedly connected to the lock shell 1. Specifically, the hanging platform 21 of the present embodiment is preferably, but not limited to, a square hanging platform 21, which is easy to process and easy to position during installation. Among them, the hanging platform 21 is provided with a plurality of through holes 210, specifically, a through hole 210 is provided at each of the four corners of the hanging platform 21, and the lock shell 1 is provided with a plurality of first threaded holes 102 corresponding to the through holes 210, specifically, four first threaded holes 102 corresponding to the four through holes 210 are provided on the lock shell 1. The screw or bolt passes through the through hole 210 and is threadedly connected in the first threaded hole 102, so that the hanging platform 21 is detachably fixed to the lock shell 1. In the present application, it is preferred that the hanging platform 21 is detachably fixed to the lock shell 1 by a flat head screw to ensure that there is no bulge after the screw is fixed.

[0069] More specifically, a back plate 10 is disposed on the back side of the lock case 1. The lock case 1 is mainly composed of a shell (not marked in the figure) and the back plate 10. The back plate 10 is detachably fixed to the back side of the shell by screws. The shell and the back plate 10 enclose an installation cavity. After the internal components of the mechanical combination lock are installed in the installation cavity, the back plate 10 is fixed to the shell to shield the internal structure and prevent the movement of its internal components from being disturbed by the outside world. A mounting groove 101 is provided on the back plate 10. The mounting groove 101 is preferably, but not limited to, a square groove, and its outer dimensions are slightly larger than the outer dimensions of the hanging platform 21 to ensure that the hanging platform 21 can be installed.

[0070] Among them, the hanging platform 21 is set in the installation groove 101, and the hanging platform 21 is flush with the back plate 10, that is, the end face (rear end face) of the hanging platform 21 close to the external thread 20 is flush with the back of the back plate 10. When the mechanical password lock is installed on the door body, it can be ensured that the hanging platform 21 and the back plate 10 are both in contact with the door body, ensuring a good fixing effect and no loosening after long-term use. If the rear end face of the hanging platform 21 protrudes from the back of the back plate 10 after the hanging platform 21 is installed in the installation groove 101, when the mechanical password lock is fixed on the door body, the back of the back plate 10 cannot fit well with the door body, affecting the fixing effect of the mechanical password lock. If the rear end surface of the hanging platform 21 is recessed compared to the back surface of the back panel 10 after the hanging platform 21 is installed in the installation groove 101, when the mechanical combination lock is fixed to the door body, although the back panel 10 can fit well on the door body, the hanging platform 21 cannot ensure a good fit with the door body. During long-term use, the screws on the hanging platform 21 are prone to loosening.

[0071] Among them, two convex strips 22 are symmetrically arranged on the outer periphery of the threaded sleeve 2, and the two convex strips 22 of the present application protrude from the left and right sides of the threaded sleeve 2 respectively. The two convex strips 22 separate the external thread 20 on the threaded sleeve 2 into an upper part and a lower part, and a notch 23 is formed at one end of the two parts of the external thread 20 close to the two convex strips 22. When the threaded sleeve 2 is inserted into the door body, it can be positioned and stopped by the two convex strips 22, that is, the two convex strips 22 are aligned with the two corresponding mounting grooves 101 on the door body, and the two convex strips 22 can be directly inserted into the two mounting grooves 101, and the positioning is achieved by the two convex strips 22. After the threaded sleeve 2 is installed, due to the circumferential limiting effect of the two convex strips 22, the threaded sleeve 2 cannot be rotated, that is, the effect of stopping rotation is achieved. In actual use, the threaded sleeve 2 of the present application is detachably fixed to the lock housing 1 through the hanging platform 21, and is positioned and stopped by the two convex strips 22 during installation. When processing the external thread 20, the notch 23 is set to ensure that the external thread 20 is easy to clean, and the assembly, disassembly, fixing and processing are all convenient.

[0072] Optionally, in order to further reliably install and fix the mechanical combination lock, a stud 11 is arranged on the back side of the lock housing 1, and a second threaded hole 110 is arranged on the stud 11. When the mechanical combination lock is installed on the door body, the screw or bolt can pass through the door body and be threaded into the second threaded hole 110 to fix the lock housing 1 on the door body. The stud 11 is integrally formed on the housing, and a corresponding circular hole is arranged on the back plate 10. The thread is penetrated through the circular hole of the back plate 10. When the back plate 10 is installed on the housing, the stud 11 and the circular hole can be used to achieve positioning, so that the back plate 10 can be quickly installed and fixed on the housing.

[0073] In summary, the back side of the lock shell 1 of the present application is provided with a threaded sleeve 2 which is detachably fixedly connected thereto. When the mechanical password lock needs to be installed on the door body, the threaded sleeve 2 can be inserted into the door body, and the lock shell 1 can be fixed on the door body by rotating the fixing nut 3. The installation of the mechanical password lock is simple. When the threaded sleeve 2 is removed from the lock shell 1, the lock core is partially exposed, and the mechanical password lock is still a complete product, which is convenient for updating and upgrading traditional mechanical locks or electronic locks. The thread specifications of the threaded sleeve 2 and the fixing nut 3 are both set to M19 or M18, which can be convenient for unifying the mounting holes on the door body (such as cabinet doors or box doors), which is consistent with the mounting holes of some mechanical locks and electronic locks on the market, and is convenient for replacing existing locks on the market. It can be directly installed and used, and directly updated and upgraded to a mechanical password lock, realizing keyless and non-electricalization. It can also facilitate the door body (such as cabinet doors or box doors) to achieve mass production, and different locks can be installed when customers have different requirements for the same product.

[0074] like Figure 5 , Figure 7 and Fig.10 As shown, when the above-mentioned installation structure of the mechanical password lock is applied to an actual mechanical password lock, the mechanical password lock mainly includes the following structures:

[0075] The above-mentioned installation structure includes a lock housing 1, a threaded sleeve 2 detachably fixedly connected thereto, and a fixing nut 3 movably arranged on the threaded sleeve 2;

[0076] The lock core module 4 is movably arranged on the lock housing 1, and includes a lock core. In the present application, the lock core is a lock core that can be unlocked by a mechanical emergency key 7. The lock core structure is provided to ensure that when the correct password is forgotten, the user can use the mechanical emergency key 7 for emergency unlocking, and the mechanical emergency key 7 can be used for management or maintenance. The lock core structure is a prior art and will not be described in detail here.

[0077] The locking mechanism 5 is arranged on the lock housing 1, and includes a locking member 51 and a plurality of password wheels 50, and the plurality of password wheels 50 are movably arranged on the lock housing 1; the locking mechanism 5 can lock the lock core module 4, and when the plurality of password wheels 50 are rotated to the correct password, the locking mechanism 5 releases the lock of the lock core module 4; it should be explained that the main function of the locking mechanism 5 is to limit the rotation of the lock core module 4, that is, when the password of the password wheel 50 is not the correct password, the locking member 51 of the locking mechanism 5 is locked to the lock core module 4, the locking member 51 will not retract, and the lock core module 4 cannot release the limit of the locking member 51, unless the mechanical emergency key 7 is used for emergency unlocking, then the lock core module 4 can be rotated. When the passwords of the plurality of password wheels 50 are all correct, when the lock core module 4 is rotated, the lock core module 4 can be rotated and drive the locking member 51 of the locking mechanism 5 to retract, that is, the locking member 51 is to release the rotation limit of the lock core module 4 at this time. In the present application, different arrangements of the code wheel 50 can be set according to the user's use requirements, so a variety of existing locking mechanisms 5 can be used to adapt to the implementation, which will be explained in detail later;

[0078] The knob 6 is rotatably arranged on the lock housing 1 and connected to the lock core module 4; when the locking mechanism 5 releases the lock core module 4, rotating the knob 6 can drive the lock core module 4 to rotate, and the rotation of the lock core module 4 drives its lock tongue 40 to rotate, thereby achieving unlocking. In the present application, a cover body 60 is provided on the knob 6 and is detachably fixedly connected to it, and the cover body 60 shields the lock core; when the cover body 60 is removed from the knob 6, the key hole of the lock core can be exposed, and the mechanical emergency key 7 matching the lock core can be inserted into the key hole to rotate the lock core module 4.

[0079] Specifically, Figure 8-Figure 9As shown, the cover body 60 is provided with a positioning protrusion 601 and an elastic buckle 602. The positioning protrusion 601 is arranged on the opposite side of the elastic buckle 602, and the positioning protrusion 601 protrudes outward from the circumference of the cover body 60. When the cover body 60 is fixed on the knob 6, the positioning protrusion 601 positions the cover body 60 on the knob 6, and the elastic buckle 602 is clamped on the knob 6. When the elastic buckle 602 is driven to elastically deform, the elastic buckle 602 can be separated from the knob 6, so that the cover body 60 can be removed from the knob 6.

[0080] It should be explained that the elastic buckle 602 of the present application is provided with a waist-shaped hole along its height direction. The setting of the waist-shaped hole facilitates the elastic buckle 602 to perform elastic deformation, prevents material accumulation during bending, and ensures that the elastic buckle 602 will not break during repeated elastic deformation. Furthermore, a reinforcing protrusion (not marked in the figure) is provided at the back root of the elastic buckle 602 near the left and right ends to prevent the top of the elastic buckle 602 from being elastically deformed smoothly, while the bottom of the elastic buckle 602 will not crack. A small hole 61 is provided on the side wall of the knob 6 at a position directly opposite to the elastic buckle 602. The small hole 61 can be used for inserting an iron wire or a steel wire. For example, the diameter of the small hole 61 can be set to 1.5 mm or even smaller. When the steel wire is inserted into the small hole 61, it can push the elastic buckle 602, causing the elastic buckle 602 to undergo elastic deformation and disengage from the knob 6. The cover body 60 can then be removed from the knob 6 to expose the keyhole on the lock core.

[0081] During use, a cover 60 is provided on the knob 6 of the mechanical combination lock of the present application, and the cover 60 is used to cover the lock core inside, hide the emergency key hole of the mechanical combination lock, avoid exposure, and improve the aesthetics. When emergency unlocking is required by mechanical key, the elastic buckle 602 on the cover 60 is separated from the knob 6, and the cover 60 is removed from the knob 6, so that the key hole on the lock core can be exposed, and the matching mechanical emergency key 7 can be inserted into the key hole to realize emergency unlocking. However, the mechanical emergency key 7 holes of the existing mechanical combination locks all have exposed surfaces, which is contrary to the promotion of password-free key.

[0082] Although the structure of the locking mechanism 5 in the present application is prior art and has many implementation methods, only a part is selected for illustration.

[0083] like Figure 5 and Fig.10 As shown, it is the first implementation of the mechanical combination lock of the present application, and its four combination wheels 50 are arranged side by side in pairs and are completely protruding on the front of the lock housing 1. When the four combination wheels 50 are all correct passwords, the locking member 51 will release the rotation limit of the lock core module 4, and the mechanical combination lock can be unlocked smoothly by rotating the knob 6.

[0084] like Figure 11-13 As shown, it is a second implementation of the mechanical combination lock of the present application, in which four combination wheels 50 are arranged side by side in pairs and protruded on the front of the lock housing 1. The difference from the first implementation is that in this implementation, the four combination wheels 50 are rotated into the interior of the lock housing 1 instead of protruding on the front of the lock housing 1, two of the four combination wheels 50 protrude from the left part of the lock housing 1, and the other two combination wheels 50 protrude from the right part of the lock housing 1, so as to facilitate the rotation of the combination wheels 50.

[0085] like Figure 14-15 As shown, it is the third implementation of the mechanical combination lock of the present application, wherein four combination wheels 50 are arranged in parallel from top to bottom, and the four combination wheels 50 are partially accommodated in the lock housing 1, and partially protrude from the front of the lock housing 1, and the structure is more compact. Referring to the scheme with publication number CN206693766U or CN105019731B, the locking mechanism 5 of the present invention can be implemented by the internal locking mechanism 5 of the mechanical combination lock.

[0086] like Figure 16-Figure 17 As shown, this is a fourth implementation of the mechanical combination lock of the present application, wherein four combination wheels 50 are arranged side by side in pairs, and are partially protruded from the front side of the lock housing 1 .

[0087] Taking the four implementation methods as examples, when the arrangement of the code wheel 50 changes, the transmission direction changes, and the transmission can be achieved through a worm gear or a bevel gear. Since the locking mechanism 5 of the present application adopts the existing structure of the locks on the market, it is not an innovation of the present application and will not be described in detail here.

[0088] In the present application, the mechanical password lock is easy to install, has good versatility, and is easy to update and upgrade.

Claims

1. A mechanical password lock installation structure, characterized in that: include: A lock housing, wherein a threaded sleeve detachably connected to the lock housing is disposed on the back side of the lock housing, the threaded sleeve at least partially protrudes from the back side of the lock housing, and the outer periphery of the threaded sleeve has an external thread; A fixing nut, movably arranged on the threaded sleeve and threadedly connected to the external thread on the threaded sleeve; When the mechanical code lock is installed on the door body, the threaded sleeve is inserted into the door body, and the fixing nut can be rotated to move the fixing nut along the external thread on the threaded sleeve to fix the mechanical code lock on the door body.

2. The installation structure of the mechanical combination lock according to claim 1, characterized in that: The specifications of the external thread on the threaded sleeve and the internal thread of the fixing nut are M19 or M18.

3. The installation structure of the mechanical combination lock according to claim 1, characterized in that: The mechanical password lock is provided with a lock core module, and the lock core module is inserted into the threaded sleeve; When the threaded sleeve is removed from the lock housing, the lock core module is at least partially exposed on the back side of the lock housing.

4. The installation structure of the mechanical combination lock according to any one of claims 1 to 3, characterized in that: A hanging platform is arranged at one end of the threaded sleeve close to the lock housing, and the hanging platform is detachably fixedly connected to the lock housing.

5. The installation structure of the mechanical combination lock according to claim 4, characterized in that: The hanging platform is provided with a plurality of through holes, and the lock housing is provided with a plurality of first threaded holes corresponding one to one with the through holes; A screw or a bolt passes through the through hole and is threadedly connected in the first threaded hole to detachably fix the hanging platform on the lock housing.

6. The installation structure of the mechanical combination lock according to claim 4, characterized in that: A back plate is disposed on the back side of the lock housing, and a mounting groove is provided on the back plate. The hanging platform is disposed in the mounting groove, and the hanging platform is flush with the back plate.

7. The installation structure of the mechanical combination lock according to claim 1, characterized in that: Two convex strips are symmetrically arranged on the outer circumference of the threaded sleeve, and the two convex strips separate the external thread on the threaded sleeve into two parts, and a notch is formed at one end of the two parts of the external thread close to the two convex strips respectively; When the threaded sleeve is inserted into the door body, it can be positioned and stopped by the two convex strips.

8. The installation structure of the mechanical combination lock according to claim 1, characterized in that: A stud is disposed on the back side of the lock housing, and a second threaded hole is provided on the stud; When the mechanical combination lock is installed on the door body, a screw or a bolt can pass through the door body and be threadedly connected in the second threaded hole to fix the lock housing on the door body.

9. A mechanical combination lock, characterized in that: include: The mounting structure according to any one of claims 1 to 8; A lock core module, movably disposed on the lock housing, comprising a lock core; A locking mechanism is arranged on the lock housing, comprising a plurality of password wheels, and the plurality of password wheels are movably arranged on the lock housing; the locking mechanism can lock the lock core module, and when the plurality of password wheels are rotated to a correct password, the locking mechanism releases the lock core module; A knob is rotatably disposed on the lock housing and connected to the lock core module; when the lock mechanism releases the lock core module, rotating the knob can drive the lock core module to rotate; The knob is provided with a cover body which is detachably fixedly connected thereto, and the cover body covers the lock core; when the cover body is removed from the knob, the keyhole of the lock core can be exposed, and a mechanical emergency key matching the lock core can be inserted into the keyhole to rotate the lock core module.

10. The mechanical combination lock according to claim 9, characterized in that: The cover body is provided with a positioning protrusion and an elastic buckle; When the cover is fixed on the knob, the positioning protrusion positions the cover on the knob, and the elastic buckle is snapped on the knob; When the elastic buckle is driven to deform elastically, the elastic buckle can be separated from the knob, so that the cover body can be removed from the knob.

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