Automatic closing cabinet door

Abstract

The present application relates to a kind of automatic switch tightening cabinet door, it is to solve the technical problem that less similar products of existing through steel wire rope realizes automatic switch, and tight waterproof seal.The gist is that the one end of the steel wire rope in the base of the cabinet door is connected to the one end of the tightening pull slider fixed in the base by the guide piece and the guide block, the guide block is fixedly arranged in the base, and the motor linkage gear below the tightening pull slider is provided with switch door swing lever rack and tightening pull rack on both sides and is engaged at the same time;The gear opening of the switch door gear and the switch door swing lever rack is engaged at the tooth opening of the one pin shaft of the one end of the cabinet door switch swing lever at the top of the cabinet body, and the track roller at the other pin shaft of the other end of the cabinet door switch swing lever is arranged in the switch door track of the inboard of the door plate at the door assembly;The locking tongue block of the tightening pull slider below is provided with protruding square head corresponding to the top of the tightening pull rack, and the rear of the locking tongue block in the tightening pull slider is provided with locking tongue block spring.

Description

Technical Field

[0001] This invention relates to the field of locks for industrial cabinet doors, specifically a type of lock that automatically opens and closes to tighten the cabinet door. Background Technology

[0002] Currently, industrial cabinet doors on the market are generally opened with keys, including rotary locks or multi-lock locks. However, some photovoltaic and wind power projects are seeing an increase in the number of conversion cabinets, characterized by large scale, requiring a large number of staff for daily inspections and timely incident handling. Automated inspection is needed to detect, diagnose, and analyze the equipment's operating status, promptly identifying and resolving any problems. This process requires no human intervention, necessitating industrial cabinet door locks that provide automatic opening and closing, as well as waterproof tightening. The industry outlook is generally optimistic, with stable growth expected in the coming years. Furthermore, with the acceleration of digital transformation and the continuous advancement of optical communication technology, the market demand and application of automatic opening, closing, and tightening cabinets for optical distribution boxes, as important equipment in communication networks, will continue to grow. Currently, there are no industrial cabinet lock solutions on the market that offer automatic opening and closing, or waterproof tightening. Currently, household switch locks on the market mainly have the following three structures: 1. Automatic window opening structure; 2. Side-opening sliding door structure; 3. Top-and-bottom flip-open structure. These products are only suitable for household use and are difficult to implement the aforementioned automatic opening and closing, and waterproof tightening functions. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the purpose of this invention is to provide a cabinet door with automatic opening and closing mechanism that facilitates automatic opening and closing, thereby solving the technical problem that existing similar products rarely achieve automatic opening and closing via steel wire rope, as well as tightening and waterproof sealing. This objective is achieved through the following technical solution.

[0004] A cabinet door with automatic opening and closing mechanism is disclosed. One side of the door panel is hinged to one side of the cabinet body via upper and lower hinges. On the opposite side of the cabinet body, symmetrical to the hinges, an upper locking latch assembly and a lower locking latch assembly are respectively located at the upper and lower ends of the doorway. A latching rod is located at the doorway on this side, between the upper and lower locking latch assemblies. A steel wire rope passes through a guide at the corner of the doorway and a tightening screw on the latching rod. Simultaneously, one end of the steel wire rope is redirected or branched to connect to the swing arm within the upper and lower locking latch assemblies. The door panel of the corresponding door assembly has a latching element at the door component where the upper and lower locking latching components are located. The key structural design feature is that the other end of the steel wire rope is connected to one end of the tightening pull slider fixed inside the base via the guide and guide block. The other end of the tightening pull slider is equipped with a tightening pull slider spring. The guide block is fixedly installed inside the base of the automatic switch tightening mechanism. On both sides of the motor linkage gear below the tightening pull slider are respectively provided a door opening / closing swing arm rack and a tightening pull rack. The motor linkage gear is connected to the motor shaft at the motor location. The drive gear meshes, or the motor shaft of the motor is directly connected to the motor linkage gear. The motor is connected to the PCB circuit board inside the base of the automatic switch tightening mechanism via wiring. Switching door swing arm racks have springs at both ends. Simultaneously, the teeth on opposite sides of the tightening rack and the switching door swing arm rack mesh with the gear rings on both sides of the motor linkage gear. At one pin at one end of the cabinet door switch swing arm, the switching door gear meshes with the teeth of the switching door swing arm rack, while a track roller is located at the other pin at the other end of the cabinet door switch swing arm. The wheel is installed in the door opening and closing track inside the door panel at the door assembly. The automatic opening and closing tightening mechanism is installed on the hinge side of the cabinet corresponding to the door opening and closing track, above the doorway and inside the top. The top of one end of the tightening pull rack on one side of the cabinet door opening and closing lever has a protruding square head. The tightening pull slider above the square head has an extended locking tongue block. The locking tongue block inside the tightening pull slider has a locking tongue block spring at the rear. In the initial state, the square head of the tightening pull rack is located on one side of the vertical edge of the locking tongue block, and the other side of the vertical edge of the locking tongue block is a beveled angle.

[0005] When the door panel of the aforementioned door assembly is closed by the door switch lever, the motor drives the motor linkage gear to rotate. The motor linkage gear drives the tightening pull rack and the door switch lever rack to move in opposite directions simultaneously. The square head of the tightening pull rack abuts against the vertical edge of the latch block, causing the tightening pull slider to move and tighten the steel wire rope. At the same time, the steel wire rope tightens and opens the swing latch in the upper and lower locking latch assemblies until the door panel's latch is inserted and fixed into the swing latch in the upper and lower locking latch assemblies. The swing latch then resets until the door assembly is closed. The motor continues to drive the motor linkage gear... When the moving gear rotates, the square head of the tightening rack passes the vertical edge of the latch block. The tightening rack is then reset by the tightening rack spring, and the wire rope is released and reset. When the door panel of the door assembly is opened by the cabinet door switch lever, the motor drives the motor linkage gear to rotate in the opposite direction. The square head of the tightening rack passes the angled end of the latch block, and the motor linkage gear rotates forward again, driving the tightening slider to move and tighten the wire rope. The door panel's latch disengages from the swing latch in the upper and lower locking latch assemblies. Simultaneously, the motor linkage gear rotates in the opposite direction again until the door assembly is open. Thus, the cabinet door adopts a motor drive mechanism for disengaging the gear, and a mechanical lock hook tightening mechanism. The above structure realizes the automatic closing, opening, and closing of the cabinet door, especially the automatic closing of the cabinet door achieved by the wire rope. At the same time, the door assembly is further tightened after closing to meet the cabinet's sealing requirements. That is, the aforementioned door swing arm rack is driven to move left and right by the motor linkage gear in the automatic switch tightening mechanism. At the same time, the door switch swing arm, which rotates at one end of the door switch gear, drives the door panel to open and close automatically through the track roller in the door switch track at the other end of the door panel.

[0006] The two ends of the steel wire rope extending from the base and the guide block are connected by steel wire rope tension springs. When the door panel of the door assembly is closed by the cabinet door switch lever, the steel wire rope tension spring is pre-stretched. The locking mechanism of the door panel is directly inserted into the upper and lower locking latch assemblies and the swinging bolt swings and then resets to lock. The steel wire rope tension spring is stretched and then resets until the door assembly is closed. When the door panel of the door assembly is opened by the cabinet door switch lever, the square head of the tightening rack abuts against the vertical edge of the bolt block, causing the tightening slider to move and tighten the steel wire rope and steel wire rope tension spring. The locking mechanism of the door panel disengages from the swinging bolt in the upper and lower locking latch assemblies. At the same time, the tightening rack is reset and retracted by the tightening rack spring. The square head of the steel wire rope is released and reset, passing over the vertical edge of the bolt block until the door assembly is opened. After adding the wire rope tension spring in the above process, the square head of the tightening rack does not need to move repeatedly. That is, when the wire rope tightening detection switch is triggered, the motor stops working. After the door panel is locked and pressed against each other, the motor starts working again and continues to move past. After that, the tightening rack is reset by the wire rope tension spring and the wire rope is released. This also drives the swinging bolt in the upper and lower locking latch assembly to reset and open.

[0007] The door switch lever has a symmetrical meshing gear with the door switch lever rack at one end. A secondary rack is located in a groove at the other end of the door switch lever rack. A secondary rack spring is located in the groove on the side of the secondary rack corresponding to the side where the wire rope extends from the base. The aforementioned secondary rack and corresponding secondary rack spring are implemented as needed, representing another embodiment.

[0008] The motor linkage gear of the door swing arm rack has a notch at one end for rewinding and idle rotation. This structure allows for a reduction in the length of the door swing arm rack, facilitating operation after rewinding and idle rotation via the corresponding springs on both sides of the door swing arm rack.

[0009] The cabinet door switch lever inside the base is equipped with a door closing detection switch that is triggered when the cabinet door switch lever is closed to the correct position.

[0010] The base is equipped with a door opening detection switch that is triggered when the door opening lever is in place at the tightening and pulling slider.

[0011] The base is equipped with a wire rope tightening detection switch that is triggered when the wire rope is tightened by the tightening rack.

[0012] A sealing strip is installed at the door of the cabinet to further meet the cabinet's sealing requirements.

[0013] The PCB circuit board is equipped with an infrared module, a wireless Bluetooth module and / or an external signal module.

[0014] The cabinet body omits the upper and lower locking latch assemblies, as well as the corresponding latches on the door panel at the door assembly.

[0015] This invention features a reasonable and simple structure, making it convenient to manufacture, install, and use. It also boasts excellent sealing and waterproofing, facilitating automatic opening and closing, particularly through the use of a steel wire rope. It is suitable for use as a cabinet door tightening mechanism with an automatic opening and closing mechanism, as well as for structural improvements to similar products. Attached Figure Description

[0016] Figure 1 This is an exploded structural diagram of Embodiment 1 of the present invention.

[0017] Figure 2 yes Figure 1 The diagram shows the assembled 3D structure, with the dotted lines representing the door components and cabinet body.

[0018] Figure 3 yes Figure 2 A cross-sectional and enlarged structural diagram of the telescopic lock in the closed state of the door assembly.

[0019] Figure 4 yes Figure 2 A three-dimensional structural diagram of the automatic switch tightening mechanism.

[0020] Figure 5 yes Figure 4 This is a schematic diagram of the internal structure with the bottom cover open; the bottom cover is omitted in the diagram.

[0021] Figure 6 yes Figure 5 A schematic diagram of the explosion structure.

[0022] Figure 7 yes Figure 5 A schematic diagram of the initial internal structure of the door assembly in the open state.

[0023] Figure 8 yes Figure 7 Example 2: Initial internal structure diagram of the door component in the open state.

[0024] Figure 9 yes Figure 8 The diagram shows the internal structure of the door opening / closing lever rack and the tightening rack when the square head of the tightening rack abuts against the latch block during the closing process.

[0025] Figure 10 yes Figure 9 A schematic diagram of the internal structure when the square head of the rack is tightened and the latch is moved during the closing process.

[0026] Figure 11 yes Figure 10The diagram shows the internal structure of the steel wire rope that is stretched and tightened during the closing process, pulling the square head of the rack past the locking tongue block.

[0027] Figure 12 yes Figure 11 After the door is closed, tightening the slider will cause the latch block to reset. (Internal structure diagram)

[0028] Figure 13 yes Figure 12 A schematic diagram of the internal structure of the automatic opening and closing tightening mechanism before the door opens.

[0029] Figure 14 yes Figure 2 The diagram shows the improved structure, omitting the upper locking latch assembly, lower locking latch assembly, and latching element.

[0030] Attached Figure Numbers and Names: 1. Cover, 2. Motor, 201. Motor Drive Gear, 3. Base, 4. Door Opening / Closing Rod Rack, 401. Reverse Loop Notch, 5. Secondary Rack, 6. Tightening Pull Rack, 601. Square Head, 7. Motor Linkage Gear, 8. Door Opening / Closing Gear, 9. Lower Cover, 10. Door Assembly, 1001. Door Opening / Closing Track, 11. Cabinet Body Base, 12. Sealing Strip, 13. Upper Locking Snap-on Assembly, 14. Steel Wire Rope, 15. Locking Rod, 16. Lower Locking Snap-on Assembly, 17. Support Base, 18. Track Roller, 19. Cabinet Door Opening / Closing Rod, 20. PCB Circuit Board, 21. Door Closing Detection Switch, 22. Guide Block, 23. Tightening Pull-on Slider, 24. Steel Wire Rope Spring, 25. Door Opening Detection Switch, 26. Steel Wire Rope Tightening Detection Switch, 27. Lock Tongue Block. Implementation

[0031] The structure and use of the present invention will now be further described with reference to the accompanying drawings. Figures 1-13As shown, one side of the door panel of the cabinet door assembly 10 is hinged to one side of the cabinet body 11 via upper and lower hinges. On the other side of the cabinet body symmetrical to the hinges, an upper locking latch assembly 13 and a lower locking latch assembly 16 are respectively provided at the upper and lower doorway. A latch rod 15 is provided at the cabinet doorway on this side between the upper and lower locking latch assemblies. The steel wire rope 14 passes through the guide at the corner of the cabinet doorway on this side and the tightening screw of the latch rod. At the same time, one end of the steel wire rope is connected to the swing lock tongue in the upper and lower locking latch assemblies by changing direction or branching. The door panels of the corresponding door assemblies of the upper and lower locking latch assemblies are provided with latching components. The other end of the aforementioned wire rope is connected to one end of the tightening and pulling slider 23 fixed inside the base 3 via the guide and guide block 22. The other end of the tightening and pulling slider is provided with a tightening and pulling slider spring. The guide block is fixedly installed inside the base of the automatic switch tightening mechanism. The motor linkage gear 7 below the tightening and pulling slider is provided with a door swing arm rack 4 and a tightening and pulling rack 6 on both sides respectively. The motor linkage gear meshes with the motor drive gear 201 of the motor shaft at the motor 2, or the motor shaft of the motor is directly connected to the motor linkage gear. The motor is connected to the PCB circuit board 20 inside the base of the automatic switch tightening mechanism through a circuit. The two ends of the door swing arm rack are provided with door swing arm rack springs respectively. When the teeth on the opposite side of the tightening and pulling rack and the door swing arm rack mesh with the gear rings on both sides of the motor linkage gear, the door switch gear at one pin at one end of the cabinet door switch swing arm 19 is activated. 8 engages with the teeth of the door swing arm rack. The other pin at the other end of the door swing arm is located in the door swing rail 1001 inside the door panel of the door assembly. The automatic switch tightening mechanism is located on the hinged side of the cabinet corresponding to the door swing rail, above the doorway. The top of one end of the tightening rack on one side of the door swing arm has a protruding square head 601. The tightening slider above the square head has an extended locking tongue block 27. The locking tongue block in the tightening slider has a locking tongue block spring at the rear. In the initial state, the square head of the tightening rack is located on one side of the vertical edge of the locking tongue block. The other side of the vertical edge of the locking tongue block is symmetrical and has a beveled end angle. The two ends of the steel wire rope extending from the base and the guide block are connected by a steel wire rope tension spring 24. The tooth of the motor linkage gear on the switch arm rack has a rewind idle notch 401. Alternatively, the gears of the switch door and the rack of the switch door are symmetrically meshed at the switch door swing arm. At the other end of the switch door swing arm rack, there may be a secondary rack 5 in the groove. A secondary rack spring is provided in the groove on the side of the secondary rack corresponding to the side where the steel wire rope extends out of the machine base.The aforementioned motor and PCB circuit board are located in a cavity on one side of the base, with a cover 1 at the cavity opening. The other components are located in a cavity on the other side of the base, with a lower cover 9 at the cavity opening. A pin at one end of the cabinet door switch lever is connected to the corresponding door switch gear in the cavity via the lower cover. The PCB circuit board is equipped with an infrared module. The aforementioned upper and lower locking latch assemblies are telescopic locks that extend and retract via a steel wire rope.

[0032] Meanwhile, the cabinet door switch lever inside the aforementioned base is equipped with a door closing detection switch 21 triggered when the cabinet door switch lever is fully closed; the tightening pull slider inside the base is equipped with an opening detection switch 25 triggered when the cabinet door switch lever is fully open; and the tightening pull rack inside the base is equipped with a wire rope tightening detection switch 26 triggered when the tightening pull rack tightens the wire rope. A sealing strip 12 is provided at the cabinet doorway, and support seats 17 are provided at the bottom corners of the cabinet.

[0033] The cabinet door sends unlock or lock signals to the lock via infrared. The specific unlocking and locking working principle is as follows: After receiving the unlocking command, the motor works to unlock the telescopic lock via the wire rope. After the telescopic lock is unlocked, the motor then drives the cabinet door swing arm to open the door assembly in the specified direction. After receiving the lock closing command, the motor works to close the cabinet door via the connecting rod. Then, the telescopic lock is locked via the wire rope, completing the locking and closing process.

[0034] The specific operation of the cabinet door is as follows: When the door panel of the above-mentioned door assembly is closed by the cabinet door switch lever, the motor drives the motor linkage gear to rotate. The motor linkage gear drives the tightening pull rack and the door switch lever rack to move in opposite directions simultaneously. The square head of the tightening pull rack abuts against the vertical edge of the latch block, causing the tightening pull slider to move and tighten the steel wire rope. At the same time, the steel wire rope tightens and opens the swing latch in the upper lock latch assembly and the lower lock latch assembly until the door panel's latch is inserted and fixed in the swing latch in the upper lock latch assembly and the lower lock latch assembly. The swing latch resets until the door assembly is closed; the motor continues... The motor continues to drive the linkage gear to rotate, tightening the square head of the pull rack past the vertical edge of the latch block. The tightening pull rack is then reset by the tightening pull rack spring, and the wire rope is released and reset. When the door panel of the door assembly is opened by the cabinet door switch lever, the motor drives the motor linkage gear to rotate in the opposite direction. The square head of the tightening pull rack passes past the inclined end angle of the latch block. The motor linkage gear rotates forward again, driving the tightening pull slider to move and tighten the wire rope. At the same time, the door panel's latch disengages from the swing latch in the upper and lower locking latch assemblies, and the motor linkage gear rotates in the opposite direction again until the door assembly is opened.

[0035] Furthermore, with the aforementioned steel wire rope tension spring: when the door panel of the aforementioned door assembly is closed by the cabinet door switch lever, the steel wire rope tension spring is pre-stretched, and the door panel's locking mechanism is directly inserted into and fixed within the upper and lower locking latch assemblies. After the swinging latch swings, it resets and locks, and the steel wire rope tension spring is stretched and resets until the door assembly is closed, at which point the cabinet door switch lever triggers the door closing detection switch; when the door panel of the aforementioned door assembly is opened by the cabinet door switch lever, the square head of the tightening rack abuts against the locking latch block. The vertical edge drives the tightening slider to move and tighten the wire rope and wire rope spring. At this time, the tightening rack triggers the wire rope tightening detection switch. The wire rope and wire rope spring continue to tighten and trigger the door opening detection switch through the tightening slider. The door panel's latch disengages and opens the swing latch in the upper and lower locking latch assemblies. At the same time, the tightening rack returns to its original position through the tightening rack spring. The square head of the wire rope releases and returns to its original position, passing over the vertical edge of the latch block until the door assembly opens.

[0036] Based on the above structural characteristics, such as Figure 14 As shown, the cabinet door can also omit the upper and lower locking components of the cabinet body, as well as the corresponding locking parts of the door panel at the door assembly.

[0037] In summary, this cabinet door has the following advantages: 1. It has a quick unlocking function when the door is opened; 2. When closing the cabinet door, the door must be closed first and then tightened; 3. The left and right opening and closing are controlled by a motor gearbox remote arm linkage; 4. The tightening lock is connected by a steel wire rope; 5. To open or close the door, the telescopic lock must be unlocked first and then the cabinet door opened, and to close the door, the door must be closed first and then the telescopic lock tightens the door.

Claims

1. A cabinet door with automatic opening and closing mechanism, wherein one side of the door panel of the door assembly (10) is hinged to one side of the cabinet body (11) via upper and lower hinges, and an upper locking latch assembly (13) and a lower locking latch assembly (16) are respectively provided at the doorway on the other side of the cabinet body symmetrical to the hinges. A latch rod (15) is provided at the doorway on this side of the cabinet body between the upper locking latch assembly and the lower locking latch assembly. A steel wire rope (14) passes through the guide at the corner of the doorway on this side of the cabinet body and the tightening screw of the latch rod. At the same time, one end of the steel wire rope is connected to the swing latch in the upper locking latch assembly and the lower locking latch assembly by changing direction or branching. The door panel of the door assembly corresponding to the upper locking latch assembly and the lower locking latch assembly is provided with a latch; characterized in that: The other end of the wire rope (14) is connected to one end of the tightening pull slider (23) fixed in the base (3) through the guide and guide block (22). The other end of the tightening pull slider is provided with a tightening pull slider spring. The guide block is fixedly set in the base of the automatic switch tightening mechanism. The motor linkage gear (7) below the tightening pull slider is provided with a door swing arm rack (4) and a tightening pull rack (6) on both sides respectively. The motor linkage gear meshes with the motor drive gear (201) of the motor shaft at the motor (2), or the motor shaft of the motor is directly connected to the motor linkage gear. The motor is connected to the PCB circuit board (20) in the base of the automatic switch tightening mechanism through the line. The two ends of the door swing arm rack are provided with door swing arm rack springs respectively. The teeth on the opposite side of the tightening pull rack and the door swing arm rack are simultaneously When the gear rings on both sides of the linkage gear of the motor mesh, the door switch gear (8) at one end of the door switch lever (19) meshes with the tooth of the door switch lever rack at one pin. The track roller (18) at the other pin of the other end of the door switch lever is set in the door switch track (1001) inside the door panel at the door assembly (10). The automatic switch tightening mechanism is set in the inner top of the door on the hinge side of the cabinet (11) corresponding to the door switch track. The top of one end of the tightening pull rack on one side of the door switch lever is provided with a protruding square head (601). The tightening pull slider above the square head is provided with an extended locking tongue block (27). The locking tongue block in the tightening pull slider is provided with a locking tongue block spring at the rear. In the initial state, the square head of the tightening pull rack is located on one side of the vertical edge of the locking tongue block. The other side of the vertical edge of the locking tongue block is symmetrical and has a beveled end angle. When the door panel of the door assembly is closed by the door switch lever, the motor drives the motor linkage gear to rotate. The motor linkage gear drives the tightening pull rack and the door switch lever rack to move in opposite directions at the same time. The square head of the tightening pull rack abuts against the vertical edge of the latch block, causing the tightening pull slider to move and tighten the wire rope. At the same time, the wire rope tightens and opens the swing latch in the upper lock latch assembly (13) and the lower lock latch assembly (16) until the door panel's latch is inserted and fixed in the swing latch in the upper lock latch assembly and the lower lock latch assembly. The swing latch resets until the door assembly is closed. The motor continues to drive the door panel to close. When the motor-driven gear rotates, the square head of the tightening rack passes the vertical edge of the latch block. The tightening rack is then reset by the tightening rack spring, and the wire rope is released and reset. When the door panel of the door assembly is opened by the cabinet door switch lever, the motor drives the motor-driven gear to rotate in the opposite direction. The square head of the tightening rack passes the angled end of the latch block. The motor-driven gear rotates forward again, driving the tightening slider to move and tighten the wire rope. At the same time, the door panel's latch disengages from the swing latch in the upper and lower locking latch assemblies, and the motor-driven gear rotates in the opposite direction again until the door assembly is opened.

2. The cabinet door with automatic opening and closing mechanism according to claim 1, characterized in that... The steel wire rope (14) extending from the base (3) is connected to the guide block (22) by steel wire rope tension springs (24) at both ends. When the door panel of the door assembly (10) is closed by the cabinet door switch lever (19), the steel wire rope tension spring is pre-stretched. The door panel's locking mechanism is directly inserted into the upper and lower locking latch assemblies (13 and 16) and the swing lock tongue swings and then resets and locks. The steel wire rope tension spring is stretched and then resets until the door assembly is closed. When the door panel of the component is opened by the swing arm of the cabinet door switch, the square head (601) of the tightening pull rack (6) abuts against the vertical edge of the lock tongue block, causing the tightening pull slider (23) to move and tighten the wire rope and the wire rope tension spring. The door panel lock latch disengages from the swing lock tongue in the upper lock latch assembly and the lower lock latch assembly. At the same time, the tightening pull rack is reset and retracted by the tightening pull rack spring. The wire rope is released and reset. The square head of the tightening pull rack passes over the vertical edge of the lock tongue block until the door assembly is opened.

3. The cabinet door with automatic opening and closing tightening as described in claim 1, characterized in that... The door switch lever (19) has a symmetrical meshing gear (8) with the door switch lever rack (4). At the other end of the door switch lever rack, there is a secondary rack (5) in the groove. On the side of the steel wire rope (14) extending from the base (3), there is a secondary rack spring in the groove on the side of the secondary rack.

4. The cabinet door with automatic opening and closing mechanism according to claim 1, characterized in that... The motor linkage gear (7) of the door swing arm rack (4) has a reversing idle notch (401) on one side of the tooth opening.

5. The cabinet door with automatic opening and closing tightening as described in claim 1, characterized in that... The cabinet door switch lever (19) inside the base (3) is equipped with a door closing detection switch (21) that is triggered when the cabinet door switch lever is closed to the correct position.

6. The cabinet door with automatic opening and closing tightening as described in claim 1, characterized in that... The base (3) is equipped with a door opening detection switch (25) triggered when the cabinet door switch lever (19) is in the tightening and pulling slider (23).

7. The cabinet door with automatic opening and closing mechanism according to claim 1, characterized in that... The base (3) is equipped with a wire rope tightening detection switch (26) that is triggered when the wire rope (14) is tightened by the tightening rack (6).

8. The cabinet door with automatic opening and closing mechanism according to claim 1, characterized in that... The cabinet (11) is equipped with a sealing strip (12) at the door.

9. The cabinet door with automatic opening and closing mechanism according to claim 1, characterized in that... The PCB circuit board (20) is equipped with an infrared module, a wireless Bluetooth module and / or an external signal module.

10. The cabinet door with automatic opening and closing mechanism according to claim 1, characterized in that... The cabinet (11) omits the upper lock latch assembly (13) and the lower lock latch assembly (16), as well as the latch corresponding to the door panel at the door assembly (10).

Images