Passive cabinet lock

By using the electromagnet and slider mechanism of the passive cabinet lock, combined with the limit post and locking mechanism, the problem of existing cabinet locks being unable to monitor the number of unlocking attempts and the ease with which keys can be stolen is solved. This enables key status monitoring and control of lock opening and closing, reducing the risk of economic loss.

CN223952450UActive Publication Date: 2026-02-27XIAMEN MAKE IOT TECH CO LTD
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Patent Information

Application Number
CN202520293593.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-12-16
Filing Date
2025-02-24
Publication Date
2026-02-27
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing smart cabinet locks cannot monitor the time and number of times they are unlocked, and keys are easily stolen, which can lead to the risk of the locks being opened, causing economic losses, especially in important areas.

Method used

Design a passive cabinet lock that uses an electromagnet and a slider mechanism to control the rotation of the lock cylinder. The movement of the slider is achieved by controlling the electromagnet to turn on and off via a key. Combined with a limit post and a locking mechanism, it works with an APP for status monitoring and access management.

Benefits of technology

It effectively prevents theft and misuse of lost keys, enables control over the lock's open/closed status, and provides data feedback via an app to reduce the risk of economic loss.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a passive cabinet lock which comprises a lock cylinder assembly, the lock cylinder assembly comprises a lock shell and a lock cylinder which are matched with each other, and the lock cylinder can rotate in the lock shell; an electromagnet, a sliding block and a first spring are arranged in the lock cylinder, an inserting groove capable of being matched with one end of the sliding block in an inserted mode is formed in the inner circumferential wall of the lock shell, the first spring can drive the sliding block to move towards the periphery and be inserted into the inserting groove so that the lock cylinder can not rotate relative to the lock shell, and the electromagnet can enable the sliding block to move towards the inner periphery and retreat from the inserting groove. The passive power supply key provided by the utility model provides a power supply for a lockset and sends an unlocking instruction. The key needs to authorize an unlocking instruction through the platform to unlock the lock, otherwise, the lock cannot be unlocked even if the key is obtained.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a passive cabinet lock, and relates to the field of intelligent cabinet lock, concretely relates to passive key unlocking technology. BACKGROUND

[0002] In the field of electronic intelligent cabinet lock, most of the locks are equipped with mechanical keys, so that a problem that the lock is opened at what time and how many times the lock is opened cannot be controlled and monitored will be encountered; even if the key is taken away by illegal personnel, the lock has the risk of being opened, and economic loss is easily caused, and the problem is particularly important when the lock is used in important fields, otherwise, people will be brought a lot of unnecessary troubles after the loss is caused. SUMMARY

[0003] In order to solve the above technical problems, the utility model aims at providing a passive cabinet lock.

[0004] The utility model discloses the following technical scheme to realize:

[0005] A passive cabinet lock, including lock core group, lock core group including cooperation's lock shell and lock core, lock core can rotate in lock shell, the lock core is provided with electromagnet, sliding block and first spring, the lock shell inner wall is provided with the slot that can be inserted with the one end of sliding block and cooperates, first spring can drive sliding block and insert into the slot and move to the periphery, make lock core unable relative lock shell rotates, electromagnet can make sliding block and move to the periphery and exit the slot, make lock core and lock shell can rotate relatively.

[0006] The utility model embodiment still includes the stop post, electromagnet can drive the axial movement of stop post relative lock shell, when the other end of sliding block is abutted in stop post, the one end of sliding block keeps the state of inserting into the slot, the abutment of the other end of sliding block is cancelled after stop post moves, sliding block can move relative slot.

[0007] The utility model embodiment, the lock core is provided with the radial slot and axial slot that can be connected, the slot and first spring are arranged in the radial slot, and the stop post is arranged in the axial slot.

[0008] The utility model embodiment, the lateral both sides of the slot are provided with the first guide inclined plane, the lateral both sides of the one end of sliding block are provided with the second guide inclined plane, the first guide inclined plane can be connected with the second guide inclined plane, and the inner wall of the lock shell is provided with two slots.

[0009] The utility model discloses a lock handle and lock body, the lock handle one end is equipped with the lock post that can insert the mortise of lock body, is equipped with the recess on the side of mortise, be equipped with locking mechanism in the recess, the lock post is provided with the installation groove for installing lock cylinder set, locking mechanism can abut on the bottom surface of installation groove, the bottom surface is provided with the lock tongue, be provided with the connecting groove on the lock tongue, the lock cylinder below is equipped with the eccentric column that can cooperate with connecting groove, the rotation of lock cylinder can drive the lock tongue to move horizontally, to make locking mechanism push away from the bottom surface.

[0010] The utility model discloses a lock handle and lock body, the lock handle one end is equipped with the lock post that can insert the mortise of lock body, is equipped with the recess on the side of mortise, be equipped with locking mechanism in the recess, the lock post is provided with the installation groove for installing lock cylinder set, locking mechanism can abut on the bottom surface of installation groove, the bottom surface is provided with the lock tongue, be provided with the connecting groove on the lock tongue, the lock cylinder below is equipped with the eccentric column that can cooperate with connecting groove, the rotation of lock cylinder can drive the lock tongue to move horizontally, to make locking mechanism push away from the bottom surface.

[0011] The utility model discloses a lock handle and lock body, the lock handle one end is equipped with the lock post that can insert the mortise of lock body, is equipped with the recess on the side of mortise, be equipped with locking mechanism in the recess, the lock post is provided with the installation groove for installing lock cylinder set, locking mechanism can abut on the bottom surface of installation groove, the bottom surface is provided with the lock tongue, be provided with the connecting groove on the lock tongue, the lock cylinder below is equipped with the eccentric column that can cooperate with connecting groove, the rotation of lock cylinder can drive the lock tongue to move horizontally, to make locking mechanism push away from the bottom surface.

[0012] The utility model discloses a lock handle and lock body, the lock handle one end is equipped with the lock post that can insert the mortise of lock body, is equipped with the recess on the side of mortise, be equipped with locking mechanism in the recess, the lock post is provided with the installation groove for installing lock cylinder set, locking mechanism can abut on the bottom surface of installation groove, the bottom surface is provided with the lock tongue, be provided with the connecting groove on the lock tongue, the lock cylinder below is equipped with the eccentric column that can cooperate with connecting groove, the rotation of lock cylinder can drive the lock tongue to move horizontally, to make locking mechanism push away from the bottom surface.

[0013] The utility model discloses a lock handle and lock body, the lock handle one end is equipped with the lock post that can insert the mortise of lock body, is equipped with the recess on the side of mortise, be equipped with locking mechanism in the recess, the lock post is provided with the installation groove for installing lock cylinder set, locking mechanism can abut on the bottom surface of installation groove, the bottom surface is provided with the lock tongue, be provided with the connecting groove on the lock tongue, the lock cylinder below is equipped with the eccentric column that can cooperate with connecting groove, the rotation of lock cylinder can drive the lock tongue to move horizontally, to make locking mechanism push away from the bottom surface.

[0014] The utility model discloses a lock handle and lock body, the lock handle one end is equipped with the lock post that can insert the mortise of lock body, is equipped with the recess on the side of mortise, be equipped with locking mechanism in the recess, the lock post is provided with the installation groove for installing lock cylinder set, locking mechanism can abut on the bottom surface of installation groove, the bottom surface is provided with the lock tongue, be provided with the connecting groove on the lock tongue, the lock cylinder below is equipped with the eccentric column that can cooperate with connecting groove, the rotation of lock cylinder can drive the lock tongue to move horizontally, to make locking mechanism push away from the bottom surface.

[0015] The utility model discloses a lock handle and lock body, the lock handle one end is equipped with the lock post that can insert the mortise of lock body, is equipped with the recess on the side of mortise, be equipped with locking mechanism in the recess, the lock post is provided with the installation groove for installing lock cylinder set, locking mechanism can abut on the bottom surface of installation groove, the bottom surface is provided with the lock tongue, be provided with the connecting groove on the lock tongue, the lock cylinder below is equipped with the eccentric column that can cooperate with connecting groove, the rotation of lock cylinder can drive the lock tongue to move horizontally, to make locking mechanism push away from the bottom surface. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the utility model, below will to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, below description's drawing only some embodiments of the utility model, for the ordinary skill in the art comes, under the premise of not paying the creative labor, can also according to these drawings obtain other drawings.

[0017] Figure 1 is a perspective view of the present application.

[0018] Figure 2 is a sectional view of the present application.

[0019] Figure 3 is a schematic view of the locked state in the present application.

[0020] Figure 4 is a schematic view of the unlocked state in the present application.

[0021] Figure 5 is a schematic view of the lock cylinder assembly in the locked state of the present application. Figure 1 .

[0022] Figure 6 is a schematic view of the lock cylinder assembly in the locked state of the present application. Figure 2 .

[0023] Figure 7 is a schematic view of the lock cylinder assembly in the unlocked state of the present application. Figure 1 .

[0024] Figure 8 is a schematic view of the lock cylinder assembly in the unlocked state of the present application. Figure 2 .

[0025] Figure 9 is an exploded view of the present application.

[0026] Figure 10 is an exploded view of the lock cylinder assembly in the present application.

[0027] Figure 11 is an exploded view of the key in the present application. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0029] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0030] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] With reference to the accompanying drawings, a passive cabinet lock comprises a lock cylinder assembly 100, which comprises a lock cylinder 20 and a lock shell 10 that are matched, the lock cylinder can rotate in the lock shell to realize opening and closing; an electromagnet 30, a sliding block 31 and a first spring 32 are arranged in the lock cylinder, an insertion slot 11 that can be inserted and matched with one end of the sliding block is arranged on the inner wall of the lock shell, when the sliding block is inserted into the insertion slot, the lock cylinder and the lock shell cannot rotate relative to each other, the first spring can drive the sliding block to move outward and be inserted into the insertion slot, so that the lock cylinder cannot rotate relative to the lock shell, and the electromagnet can drive the sliding block to move inward and exit the insertion slot, so that the lock cylinder and the lock shell can rotate relative to each other.

[0034] Preferably, a limiting column 33 is further arranged, the limiting column can be arranged on the inner wall of the electromagnet, the electromagnet can drive the limiting column to move axially relative to the lock shell, when the limiting column abuts against the other end of the sliding block, the one end of the sliding block remains inserted into the insertion slot, which realizes that the sliding block is limited and cannot move; after the limiting column moves, the abutment against the other end of the sliding block is released, the sliding block can move relative to the insertion slot, at this time, the movement of the sliding block can realize opening and closing.

[0035] Further, a radial slot 21 and an axial slot 22 that can be connected are arranged in the lock cylinder, the insertion slot and the first spring are arranged in the radial slot, and the limiting column is arranged in the axial slot. First guide inclined surfaces 12 are arranged on the two sides of the insertion slot in the transverse direction, second guide inclined surfaces 34 are arranged on the two sides of the one end of the sliding block in the transverse direction, the first guide inclined surfaces can be connected with the second guide inclined surfaces in cooperation; two insertion slots are arranged on the inner wall of the lock shell, when the sliding block is inserted into one insertion slot, the lock is in a closed state, and when the sliding block is inserted into the other insertion slot, the lock is in an open state.

[0036] Still further, a lock body 200 and a lock handle 300 that are matched are further arranged, the lock handle is provided with a lock column 40 that can be inserted into a sunken groove 210 of the lock body, a recess 220 is further arranged beside the sunken groove, a locking mechanism is arranged in the recess, a mounting groove 41 for mounting the lock cylinder assembly is arranged in the lock column, the locking mechanism can abut against a bottom surface 42 of the mounting groove, at this time, the lock column cannot move out of the sunken groove, and the lock is in an open state; a lock tongue 23 is arranged on the bottom surface, a connecting groove 24 is arranged on the lock tongue, an eccentric column 25 that can be matched with the connecting groove is arranged below the lock cylinder, rotation of the lock cylinder can drive the lock tongue to move in the transverse direction, so that the locking mechanism is pushed away from the bottom surface, at this time, the locking mechanism releases the restraint on the lock column, and the lock column can be moved out of the sunken groove, to realize opening of the lock.

[0037] Preferably, the lock post is provided with an opening 43 on the side, which can cooperate with the bottom surface, the locking mechanism can be inserted into the opening and abut above the bottom surface to achieve locking. The locking mechanism comprises a bolt 51 limited in the groove, one end of the bolt can be inserted into the opening and abut above the bottom surface, the bolt is provided with a second spring 52 in the groove, the second spring can drive the bolt to move towards the opening direction, and at the same time, when locking, a guide surface 53 is arranged at the end of the bolt, so that the bolt can be locked into the groove until the bolt is opposite to the bottom surface, and under the action of the second spring, the bolt is stretched out and abuts above the bottom surface.

[0038] Further, the other end of the lock handle is hingedly connected with one end of a rotating shaft 60, and the rotating shaft is arranged on the lock body; in the unlocking state, the rotating shaft and the lock handle can rotate relative to the lock body, and the other end of the rotating shaft is connected with a tongue 61. A bolt 71 is arranged below the end of one end of the lock handle, a moving sleeve 72 is sleeved on the bolt, the moving sleeve can move relative to the bolt, a third spring 73 is arranged between the moving sleeve and the lock handle, and the first spring can make the lock handle and the lock body be separated.

[0039] Further, the key 80 is further provided with a switch button 81 capable of controlling the on-off of the electromagnet, and a key head 82 capable of cooperating with the lock cylinder assembly, the key head can drive the lock cylinder to rotate relative to the lock shell, and the key head is in the state of extending out of the key shell.

[0040] The utility model discloses a passive key and lock cylinder assembly power-on, let the electromagnet and the limiting post magnetic cooperation, rotate the key, can drive the sliding block to retreat. The lock cylinder rotates and pushes the lock tongue forward, pushes the locking mechanism away from the lock handle, at this moment, the lock handle will pop out and rotate 90 degrees with the rotating shaft as the center, and the rotating shaft is connected with the tongue, and the tongue rotates to realize unlocking. Rotate the key in the opposite direction, and the electromagnet is de-energized and returns to the original position, and the sliding block is limited to move, at this moment, the lock cylinder assembly returns to the original position and cannot be rotated. At this moment, the lock tongue retreats, and after pressing the lock handle, the locking mechanism will limit the lock handle to pop out again.

[0041] The utility model discloses more specifically: mainly through one electromagnet limit slider activity to control switch lock function. When electromagnet is in power-off state, the limit post is on the other end of slider, and the radial activity of slider is limited, when electromagnet energized state, the limit post moves axially, removes from the other end of slider, will no longer limit slider activity, this time through the key head of key drive lock cylinder to rotate, thereby drive the movement of lock bolt, and lock bolt pushes away locking mechanism from bottom surface, realizes the lock opening. The movable block release limit can rotate the whole lock cylinder, and the lock cylinder pushes lock bolt and pushes away locking mechanism and realizes the lock opening. The key has bluetooth function, can communicate with APP, and the switch lock state is fed back. Meanwhile, the key also needs to issue the authority through APP, that is, the key also has circuit board 83 and other components in it, of course, the corresponding circuit board 35 is also arranged at the lock cylinder assembly, and the authority of key is controlled through APP, and the electromagnet is powered on through the switch button, and then the lock cylinder can be driven to rotate relative to the lock shell, which is similar to the prior art, and will not be described in detail here.

[0042] The above description shows and describes the preferred embodiments of the utility model, as described above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein by the above teaching or related technical or knowledge. And the modification and change of the person in the art without departing from the spirit and scope of the utility model, then all should be within the protection scope of the utility model claims attached.

Claims

1. A passive cabinet lock comprising a lock cylinder assembly, characterized by, The lock cylinder assembly comprises a lock cylinder and a lock shell matched with each other, the lock cylinder can rotate in the lock shell, an electromagnet, a sliding block and a first spring are arranged in the lock cylinder, an insertion slot capable of being inserted and matched with one end of the sliding block is arranged on the inner wall of the lock shell, the first spring can drive the sliding block to move outward and be inserted into the insertion slot, so that the lock cylinder cannot rotate relative to the lock shell, and the electromagnet can drive the sliding block to move inward and exit from the insertion slot, so that the lock cylinder and the lock shell can rotate relative to each other.

2. A passive cabinet lock according to claim 1, characterized in that Further comprising a limiting column, the electromagnet can drive the limiting column to move axially relative to the lock shell, when the limiting column abuts against the other end of the sliding block, the one end of the sliding block remains inserted into the insertion slot, and after the limiting column moves, the abutment against the other end of the sliding block is released, and the sliding block can move relative to the insertion slot.

3. A passive cabinet lock according to claim 2, characterized in that The lock cylinder is provided with a radial slot and an axial slot capable of being communicated, the insertion slot and the first spring are arranged in the radial slot, and the limiting column is arranged in the axial slot.

4. A passive cabinet lock according to claim 3, characterized in that First guide inclined surfaces are arranged on both sides of the insertion slot in the transverse direction, second guide inclined surfaces are arranged on both sides of the one end of the sliding block in the transverse direction, the first guide inclined surfaces can be matched and connected with the second guide inclined surfaces, and two insertion slots are arranged on the inner wall of the lock shell.

5. A passive cabinet lock according to any of claims 1-4, characterized in that, Further comprising a lock body and a lock handle matched with each other, a lock column capable of being inserted into a sunken groove in the lock body is arranged at one end of the lock handle, a recess is further arranged beside the sunken groove, a locking mechanism is arranged in the recess, an installation slot for installing the lock cylinder assembly is arranged in the lock column, and the locking mechanism can abut against the bottom surface of the installation slot; a lock tongue is arranged on the bottom surface, a connecting slot is arranged on the lock tongue, an eccentric column capable of being matched with the connecting slot is arranged below the lock cylinder, and rotation of the lock cylinder can drive the lock tongue to move in the transverse direction, so that the locking mechanism is pushed away from the bottom surface.

6. A passive cabinet lock according to claim 5, wherein, An opening capable of being matched with the bottom surface is arranged on the periphery of the lock column, and the locking mechanism can be inserted into the opening and abut against above the bottom surface, so as to realize locking.

7. A passive cabinet lock according to claim 6, wherein, The locking mechanism comprises a bolt limited in the recess, one end of the bolt can be inserted into the opening and abut against above the bottom surface, and a second spring is arranged in the bolt and the recess, and the second spring can drive the bolt to move towards the opening.

8. A passive cabinet lock according to claim 7, characterized in that The other end of the lock handle is hingedly connected with one end of a rotating shaft, the rotating shaft is arranged on the lock body, in the unlocking state, the rotating shaft and the lock handle can rotate relative to the lock body, and the other end of the rotating shaft is connected with a tongue piece.

9. A passive cabinet lock according to claim 8, characterized in that A bolt is arranged below the end of one end of the lock handle, a moving sleeve is sleeved on the bolt, the moving sleeve can move relative to the bolt, a third spring is arranged between the moving sleeve and the lock handle, and the first spring can make one end of the lock handle and the lock body be separated.

10. A passive cabinet lock according to any of claims 1-4, 6-9, characterized in that, Further comprising a key, a switch button capable of controlling on-off of the electromagnet is arranged on the key, a key head capable of being matched with the lock cylinder assembly is further arranged on the key, and the key head can drive the lock cylinder to rotate relative to the lock shell.