Passive cabinet door detection mechanism

Abstract

The utility model provides a passive cabinet door detection mechanism, which comprises a panel, a sliding plate, a sliding frame, a trigger frame, a spring, an RFID chip module and an antenna, is installed on a cabinet door to abut against a door frame, pushes a top tongue to move by closing the door, drives the sliding frame to move in the sliding plate, and is in an ejection state under the action of the spring, a positioning pin enters a bent section of a guide groove, and the RFID chip module is driven to move in the sliding plate. The trigger frame moves vertically, the RFID chip module at the front end is pressed down or lifted up to be connected or disconnected with the antenna, the RFID chip module is in electric shock connection with the antenna, signals are amplified and can be received, the disconnection signals are weakened, the signals cannot be received, and therefore the opening and closing state of the door is judged. The structural design is simple, installation is convenient, wiring is not needed, and application and popularization are facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of cabinet door technology, and in particular relates to a passive cabinet door detection mechanism. Background Technology

[0002] Smart locks require equipment layout design and power wiring during the initial installation of the storage cabinet. In contrast, using mechanical locks or simple methods to close the cabinet door makes it impossible to know whether the door is closed, resulting in weaker manageability, security, and anti-theft performance. Utility Model Content

[0003] This invention provides a passive cabinet door detection mechanism that can effectively solve the above problems.

[0004] This utility model is implemented as follows:

[0005] A passive cabinet door detection mechanism includes a panel, a sliding plate, a carriage, a trigger frame, a spring, an RFID chip module, and an antenna. The sliding plate is mounted on the inner side of the panel and has a slide rail groove along its length. The carriage is located within the slide rail groove, with a top tongue at its front end and a slide groove on both sides. The guide grooves are curved to one side away from the top tongue. A vertical groove is located in the middle of the sliding plate, and the trigger frame is slidably mounted within the vertical groove. A positioning pin is located at the upper end of the trigger frame, which is positioned within the slide groove, and the positioning pin is located within the guide groove. The spring is located between the sliding plate and the carriage. The RFID chip module is located at the front end of the trigger frame. The antenna is located on the inner side of the panel, opposite to the RFID chip module, and has contacts that are electrically connected to the RFID chip module.

[0006] As a further improvement, the guide groove is bent away from the top tongue end and away from the panel side.

[0007] As a further improvement, the inner surfaces of the slide rail groove are provided with track grooves, and at least one guide rod is provided on each side of the slide corresponding to the track groove.

[0008] As a further improvement, the guide rod is flat and elongated.

[0009] As a further improvement, guide rods are provided on both sides of the front and rear ends of the carriage.

[0010] As a further improvement, the slide rail groove is provided with an installation notch corresponding to the guide rod.

[0011] As a further improvement, a compression spring is provided between the carriage and the slide rail groove away from the top tongue end, and at least one end of the compression spring is fixed to the carriage or the slide rail groove.

[0012] As a further improvement, hooks are provided on both sides of the front end of the skateboard and the rear end of the skateboard, and tension springs are provided between the hooks at the front and rear ends.

[0013] As a further improvement, the upper end of the trigger frame is provided with a threaded pin hole, and the positioning pin is connected to the threaded pin hole.

[0014] As a further improvement, the lower end of the trigger frame is provided with several limiting hooks to form a movable cavity, a chip holder is provided in the movable cavity, an elastic element is provided between the movable cavity and the chip holder, and the RFID chip module is located in the chip holder.

[0015] The beneficial effects of this utility model are as follows: This mechanism is installed on the cabinet door and abuts against the door frame. When the door is closed, the top tongue moves, causing the slide to move within the slide plate. Under the action of the spring, the top tongue is pushed out, and the positioning pin enters the bent section of the guide groove, causing the trigger frame to move vertically. The RFID chip module at the front end is pressed down or lifted to connect or disconnect with the antenna. When the RFID chip module is electrically connected to the antenna, the signal is amplified and can be received; when disconnected, the signal weakens and cannot be received, thus determining the open or closed state of the door. This structure is simple in design, easy to install, requires no wiring, and is conducive to widespread application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of a passive cabinet door detection mechanism of this utility model;

[0018] Figure 2 This is an exploded view of an embodiment of a passive cabinet door testing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the carriage structure provided in an embodiment of a passive cabinet door testing mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the trigger frame structure provided in an embodiment of a passive cabinet door detection mechanism of this utility model;

[0021] Figure 5 This is an exploded view of the trigger frame provided in an embodiment of a passive cabinet door detection mechanism of this utility model;

[0022] Figure 6This is a schematic diagram illustrating the application state of an embodiment of a passive cabinet door testing mechanism of this utility model.

[0023] Figure label:

[0024] Panel 1; Slide plate 2; Slide rail groove 21; Vertical groove 22; Track groove 23; Mounting notch 24; Carriage 3; Top tongue 31; Slide groove 32; Guide groove 33; Offset groove 34; Guide rod 35; Trigger bracket 4; Positioning pin 41; Threaded pin hole 42; Limit hook 43; Movable cavity 44; Chip holder 45; Elastic element 46; Spring 5; Hook 51; RFID chip module 6; Antenna 7; Contact 71; Cabinet door 8; Door frame 9. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0026] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In the description of this utility model, the terms "upper", "middle", "side", "side", "upper side", "end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Reference Figure 1-6As shown, a passive cabinet door detection mechanism includes a panel 1, a sliding plate 2, a carriage 3, a trigger frame 4, a spring 5, an RFID chip module 6, and an antenna 7. The sliding plate 2 is mounted on the inner side of the panel 1. The sliding plate 2 has a slide rail groove 21 along its length. The carriage 3 is disposed in the slide rail groove 21. The front end of the carriage 3 has a top tongue 31. The carriage 3 has a slide groove 32. Guide grooves 33 are provided on both sides of the slide groove 32. The guide grooves 33 are offset grooves 34 that bend to one side away from the top tongue 31. A vertical groove is provided in the middle of the sliding plate 2. 22. The trigger frame 4 is slidably disposed in the vertical groove 22. Vertical blocks matching the vertical groove 22 are provided on both sides of the trigger frame 4. The upper end of the trigger frame 4 is provided with a positioning pin 41. The upper end of the trigger frame 4 is placed in the sliding groove 32, and the positioning pin 41 is disposed in the guide groove 33. The spring 5 is disposed between the slide plate 2 and the slide 3. The RFID chip module 6 is disposed at the front end of the trigger frame 4. The antenna 7 is disposed on the inner side of the panel 1 and is disposed opposite to the RFID chip module 6. The antenna 7 is provided with a contact 71 electrically connected to the RFID chip module 6.

[0029] The cabinet door detection mechanism can be installed on the edge of the cabinet door 8 and abut against the door frame 9. It is preferably set on the opposite side of the hinge side of the cabinet door 8. It can also be installed in other positions of the cabinet door 8 as needed, as long as it can trigger the top tongue 31 to move within the recognition range when the door is opened or closed.

[0030] Panel 1 serves as the load-bearing body of the entire mechanism and is used for mounting on the door panel.

[0031] The slide plate 2 can be integrally molded with the panel 1, increasing overall strength and reducing assembly steps. The slide plate 2 serves as the horizontal sliding component of the carriage 3 and the vertical sliding component of the trigger frame 4.

[0032] The bending at the end of the guide groove 33 is to cause the positioning pin 41 to deviate from the horizontal track, so that the trigger frame 4 moves vertically, thereby causing the RFID chip module 6 to contact or detach from the antenna 7.

[0033] Spring 5 is located between slide plate 2 and slide 3, and its purpose is to make tongue 31 move forward under the action of elastic force.

[0034] The offset direction of the end of the guide groove 33 can be set as needed. If it is offset away from the panel 1, the top tongue 31 will be in the pop-out state, that is, the RFID chip module 6 and the antenna 7 will be separated in the open state and cannot send a signal. In the closed state, it can send a stronger signal and the receiving module can receive the signal. If it is offset towards the panel 1, the RFID chip module 6 and the antenna 7 will be separated in the closed state and cannot send a signal. When the door is open, the top tongue 31 will be in the pop-out state and can send a stronger signal.

[0035] The RFID chip module 6 is used to send signals so that the receiving module can receive the signals and thus know the door's closed status. When the RFID chip module 6 is connected to the antenna 7, it sends a stronger signal, which increases power consumption. Therefore, the guide groove 33 is offset away from the panel 1. This saves energy and prevents damage when the door is open or not in use.

[0036] The RFID chip module 6 is a conventional electronic tag in the prior art, used to send or receive RFID signals.

[0037] Furthermore, the guide groove 33 is bent away from the end of the top tongue 31 and away from the panel 1.

[0038] Furthermore, the inner side of the slide rail groove 21 is provided with a track groove 23, and at least one guide rod 35 is provided on each side of the slide 3 corresponding to the track groove 23.

[0039] The guide rod 35 is flat and elongated.

[0040] Even with only one flat, elongated guide rod 35 on each side, it still provides good guidance and prevents the carriage 3 from swaying back and forth.

[0041] Furthermore, guide rods 35 are provided on both sides of the front and rear ends of the carriage 3.

[0042] Guide rods 35 are set at both the front and rear ends, which provides good guidance and good sliding stability of the carriage 3.

[0043] Furthermore, the slide rail groove 21 is provided with an installation notch 24 corresponding to the guide rod 35.

[0044] The mounting notch 24 facilitates the assembly of the carriage 3 into the track groove 23, especially when the panel 1 and the slide plate 2 are integrally formed.

[0045] Furthermore, a compression spring 5 is provided between the slide 3 and the slide rail groove 21 at the end away from the top tongue 31, and at least one end of the compression spring 5 is fixed to the slide 3 or the slide rail groove 21.

[0046] The slide 3 is pushed to the other end by the compression spring 5, causing the tongue 31 to be pushed out.

[0047] Furthermore, hooks 51 are provided on both sides of the front end of the skateboard 2 and the rear end of the slide 3, and tension springs 5 ​​are provided between the hooks 51 at the front and rear ends.

[0048] The tension of the tension spring 5 pulls the slide 3 to the other end, causing the top tongue 31 to be pushed out. This structure uses less space compared to the installation method of the compression spring 5, and the symmetrical tension springs 5 ​​on both sides provide good stability.

[0049] Furthermore, the upper end of the trigger frame 4 is provided with a threaded pin hole 42, and the positioning pin 41 is connected to the threaded pin hole 42.

[0050] The threaded pin hole 42 facilitates the installation of the locating pin 41 in the guide groove 33, which is a through groove; the locating pin 41 can be installed into the threaded pin hole 42 from both sides. Alternatively, the locating pin 41 can be directly interference-fitted to the trigger frame 4.

[0051] Furthermore, the lower end of the trigger frame 4 is provided with a plurality of limiting hooks 43 to form a movable cavity 44, a chip holder 45 is provided in the movable cavity 44, an elastic element 46 is provided between the movable cavity 44 and the chip holder 45, and the RFID chip module 6 is located in the chip holder 45.

[0052] This structure allows the antenna 7 contact 71 below the RFID chip module 6 to make elastic contact, preventing damage to the antenna 7 or the RFID chip module 6. The elastic element 46 can be a spring, a sheet, or elastic rubber, etc.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A passive cabinet door detection mechanism, characterized in that, The device includes a panel, a sliding plate, a carriage, a trigger frame, a spring, an RFID chip module, and an antenna. The sliding plate is mounted on the inner side of the panel and has a slide rail groove along its length. The carriage is located within the slide rail groove and has a top tongue at its front end. The carriage also has a slide groove with guide grooves on both sides, which are curved to one side away from the top tongue. The sliding plate has a vertical groove in its middle, and the trigger frame slides within this groove. The trigger frame has a positioning pin at its upper end, which is positioned within the slide groove. The spring is located between the sliding plate and the carriage. The RFID chip module is located at the front end of the trigger frame. The antenna is located on the inner side of the panel, opposite to the RFID chip module, and has contacts that are electrically connected to the RFID chip module.

2. The passive cabinet door detection mechanism according to claim 1, characterized in that, The guide groove bends away from the top tongue end and away from the panel side.

3. The passive cabinet door detection mechanism according to claim 1, characterized in that, The inner sides of the slide rail groove are provided with track grooves, and at least one guide rod is provided on each side of the slide corresponding to the track groove.

4. The passive cabinet door detection mechanism according to claim 3, characterized in that, The guide rod is flat and elongated.

5. The passive cabinet door detection mechanism according to claim 3, characterized in that, Guide rods are provided on both sides of the front and rear ends of the carriage.

6. The passive cabinet door detection mechanism according to claim 3, characterized in that, The slide rail groove has an installation notch corresponding to the guide rod.

7. The passive cabinet door detection mechanism according to claim 1, characterized in that, A compression spring is provided between the slide and the slide rail groove away from the top tongue end, and at least one end of the compression spring is fixed to the slide or the slide rail groove.

8. The passive cabinet door detection mechanism according to claim 1, characterized in that, The front end of the skateboard and the rear end of the skateboard are respectively provided with hooks on both sides, and tension springs are respectively provided between the hooks at the front and rear ends.

9. The passive cabinet door detection mechanism according to claim 1, characterized in that, The upper end of the trigger frame is provided with a threaded pin hole, and the positioning pin is connected to the threaded pin hole.

10. A passive cabinet door detection mechanism according to claim 1 or 9, characterized in that, The lower end of the trigger frame is provided with several limiting hooks to form a movable cavity. A chip holder is provided in the movable cavity. An elastic element is provided between the movable cavity and the chip holder. The RFID chip module is located in the chip holder.

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