Cabinet door with automatic opening, closing and tightening functions

Abstract

The invention relates to a tightening cabinet door with an automatic opening and closing function, and aims to solve the technical problem that few existing similar products are automatically opened and closed through steel wire ropes, and waterproof sealing is tightened. The cabinet door is characterized in that one end of a steel wire rope in a machine base of the cabinet door is connected and fixed to one end of a tightening pulling sliding block in the machine base through a guiding piece and a guiding block, the guiding block is fixedly arranged in the machine base, and a door opening and closing swing rod rack and a tightening pulling rack are arranged on the two sides of a motor linkage gear below the tightening pulling sliding block respectively and meshed at the same time; a door opening and closing gear at a pin shaft at one end of a cabinet door opening and closing swing rod at the top in the cabinet body is meshed with a tooth opening of a door opening and closing swing rod rack; a rail roller at another pin shaft at the other end of the cabinet door opening and closing swing rod is arranged in a door opening and closing rail on the inner side of a door plate at the door assembly; a spring bolt block extending towards the tightening pulling rack is arranged below the tightening pulling sliding block, a protruding square head is correspondingly arranged at the top of the tightening pulling rack, and a spring bolt block spring is arranged on the rear portion of the spring bolt block in the tightening pulling sliding block.

Description

Technical Field

[0001] The present invention relates to the field of locks for industrial cabinet doors, and is a kind of cabinet door with automatic opening and closing and tightening function. Background Art

[0002] At present, industrial cabinet doors on the market are generally mainly opened by keys, including rotary locks or crossbar locks, etc. Among them, the number of conversion cabinets in some photovoltaic and wind power projects has increased, with characteristics such as large scale. A large number of staff are required for daily inspections and timely handling of incidents. Automatic inspections are needed to detect, diagnose, analyze the operating status of equipment, and promptly discover and solve existing problems; this process requires no human intervention, and such industrial cabinet door locks need to meet the functions of automatic opening and closing and waterproof tightening. The industry outlook is generally optimistic and is expected to maintain stable growth in the next few years. In addition, with the acceleration of digital transformation and the continuous progress of optical communication technology, some optical fiber distribution box automatic opening and closing tightening cabinets, as important equipment in the communication network, will have an increasing market demand and application volume. At present, there is no solution for industrial cabinet locks on the market that can automatically open and close and tighten waterproof cabinet doors. The structures of household switch locks on the market mainly include the following three types: 1. The structure of automatic window opening for households; 2. The sliding door opening structure of the guide rail with two-side opening method; 3. The structure of the up-and-down flipping opening method; the above products can only meet household use and are difficult to achieve the above functions of automatic opening and closing and waterproof tightening. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the present invention is to provide a cabinet door with automatic opening and closing and tightening function to the field, so as to solve the technical problem that few existing similar products realize automatic opening and closing and waterproof tightening through steel wires. Its purpose is achieved through the following technical solutions.

[0004] A cabinet door with an automatic switch for tightening, one side of the door panel at the door assembly of the cabinet door is hinged to one side of the cabinet body through upper and lower hinges. At the door opening on the other side of the cabinet body symmetric to the hinges, an upper locking latch assembly and a lower locking latch assembly are respectively provided above and below. A latch rod is provided at the door opening of the cabinet body on this side between the upper locking latch assembly and the lower locking latch assembly. The steel wire rope passes through the guiding member at the end corner of the door opening on this side of the cabinet body and the tensioning screw of the latch rod. At the same time, one end of the steel wire rope is respectively connected to the swinging locking tongues in the upper locking latch assembly and the lower locking latch assembly through deflection or branching. Locking parts are provided on the door panel at the corresponding door assembly of the upper locking latch assembly and the lower locking latch assembly. The key point of the structural design is that the other end of the steel wire rope is connected to one end of the tightening pulling slider fixed in the machine base through the guiding member and the guiding block. A tightening pulling slider spring is provided at the other end of the tightening pulling slider. The guiding block is fixedly arranged in the machine base of the automatic switch tightening mechanism. On both sides of the motor linkage gear below the tightening pulling slider, a door opening / closing swing rod rack and a tightening pulling rack are respectively provided. The motor linkage gear meshes with the motor driving gear on the motor shaft at the motor, or the motor shaft of the motor is directly connected to the motor linkage gear. The motor is connected to the PCB circuit board in the machine base of the automatic switch tightening mechanism through a circuit. Spring are respectively provided at both ends of the door opening / closing swing rod rack. At the same time, the tooth openings on the opposite sides of the tightening pulling rack and the door opening / closing swing rod rack are simultaneously meshed with the tooth rings on both sides of the motor linkage gear. At the same time, a door opening / closing gear at a pin shaft at one end of the cabinet door opening / closing swing rod is meshed with the tooth opening of the door opening / closing swing rod rack. A track roller is arranged in the door opening / closing track on the inner side of the door panel at the door assembly at the other pin shaft at the other end of the cabinet door opening / closing swing rod. The automatic switch tightening mechanism is arranged at the upper inner top of the hinged side door opening of the cabinet body corresponding to the door opening / closing track. At the top of one end of the tightening pulling rack on one side of the cabinet door opening / closing swing rod, a protruding square head is provided. A locking tongue block extends from the tightening pulling slider above the square head. A locking tongue block spring is provided at the rear of the locking tongue block in the tightening pulling slider. In the initial state, the square head of the tightening pulling rack is located on one side of the vertical edge of the locking tongue block, and the end angle on the symmetric opposite side of the vertical edge of the locking tongue block is an inclined end angle.

[0005] When the door panel of the above door assembly is driven to close by the cabinet door switch swing rod, the motor drives the motor linkage gear to rotate. The motor linkage gear drives the tightening pull rack and the switch door swing rod 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 lock tongue block, driving the tightening pull slider to move and tighten the steel wire rope. At the same time, the steel wire rope tightens to open the swing lock tongues in the upper closing lock buckle assembly and the lower closing lock buckle assembly until the lock fastener of the door panel is inserted into the swing lock tongues fixed in the upper closing lock buckle assembly and the lower closing lock buckle assembly, and the swing lock tongues are reset until the door assembly is closed. The motor continues to drive the motor linkage gear to rotate, and the square head of the tightening pull rack crosses the vertical edge of the lock tongue block. The tightening pull rack returns by resetting through the tightening pull rack spring, and the steel wire rope loosens and resets. When the door panel of the door assembly is driven to open by the cabinet door switch swing rod, the motor drives the motor linkage gear to rotate in the reverse direction. The square head of the tightening pull rack crosses the inclined end angle of the lock tongue block. The motor linkage gear rotates forward again to drive the tightening pull slider to move and tighten the steel wire rope. When the lock fastener of the door panel disengages from the swing lock tongues in the upper closing lock buckle assembly and the lower closing lock buckle assembly, the motor linkage gear rotates in the reverse direction again until the door assembly is opened. Thus, the cabinet door adopts a motor drive mechanism tooth disengaging scheme and at the same time adopts a mechanical lock hook tightening mechanism scheme for tightening. The above structure realizes the automatic closing of the cabinet door, as well as the automatic opening and closing of the door. In particular, the automatic closing of the cabinet door is realized through the steel wire rope. At the same time, after the door assembly is closed, it is further tightened to meet the cabinet body sealing requirements. That is, when the above switch door swing rod rack is driven to move left and right by the motor linkage gear at the motor in the automatic switch tightening mechanism, the cabinet door switch swing rod that rotates at one end of the switch door gear drives the door panel to automatically open and close through the track roller in the switch door track at the other end of the cabinet door switch swing rod.

[0006] The steel wire rope in the machine base extends out of one side and is connected to the two ends of the steel wire rope between the guide block through a steel wire rope tension spring; when the door panel of the door assembly is driven to close by the cabinet door switch swing rod, the steel wire rope tension spring is pre-stretched, and the lock piece of the door panel is directly inserted into and fixed in the upper closing lock catch assembly and the lower closing lock catch assembly, and the swinging lock tongue is reset and locked after swinging, and the steel wire rope tension spring is reset after stretching until the door assembly is closed; when the door panel of the door assembly is driven to open by the cabinet door switch swing rod, the square head of the tightening and pulling rack is abutted against the vertical edge of the lock tongue block, driving the tightening and pulling slider to move and tighten the steel wire rope and the steel wire rope tension spring, and the lock piece of the door panel is disengaged from and opens the swinging lock tongue in the upper closing lock catch assembly and the lower closing lock catch assembly, and the tightening and pulling rack is reset and retracted by the tightening and pulling rack spring, and the steel wire rope is loosened and reset, and the square head of the tightening and pulling rack passes over the vertical edge of the lock tongue block until the door assembly is opened. After adding the wire rope tension spring in the above process, the square head of the tightening and pulling rack does not need to be moved repeatedly, that is, the motor stops working when the wire rope tightening detection switch is triggered, and the motor starts working again when the door panel is locked and opens. After that, the tightening and pulling rack is reset and retracted through the wire rope tension spring to release the wire rope, and drive the swinging lock tongue in the upper and lower locking lock components to reset and open.

[0007] The switch door gear at the cabinet door switch swing lever is symmetrically meshed with the tooth opening of the switch door swing lever rack, and a secondary rack is arranged in the slide groove at the switch door swing lever rack at the other end, and a secondary rack spring is arranged in the slide groove on the side of the secondary rack corresponding to the side where the wire rope extends out of the machine base. The above-mentioned secondary rack and the corresponding secondary rack spring are implemented as required, which is another embodiment.

[0008] The motor linkage gear of the door switch swing rod rack has a rewinding idling notch at one side of the tooth opening. The above structure facilitates the reduction of the length of the door switch swing rod rack, so that it is convenient to operate after rewinding idling through the corresponding door switch swing rod rack springs on both sides.

[0009] A door closing detection switch is provided at the cabinet door switch swing rod in the machine base and is triggered when the cabinet door switch swing rod is fully closed.

[0010] A door opening detection switch is provided at the tightening and pulling slide block in the machine base, which is triggered when the cabinet door switch swing rod opens the door in place.

[0011] A wire rope tightening detection switch is provided at the tightening and pulling rack in the machine base, which is triggered when the tightening and pulling rack tightens the wire rope.

[0012] A sealing strip is provided at the door of the cabinet, thereby further meeting the cabinet sealing requirements.

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

[0014] The upper and lower locking latch components of the cabinet body are omitted, as well as the locking components corresponding to the door panels at the door assembly.

[0015] The structure of the present invention is reasonably designed, simple in structure, convenient for production, installation and use, good in sealing and waterproof performance, and convenient for automatic opening and closing. In particular, it realizes automatic opening and closing through a steel wire rope. It is suitable for use as a cabinet door with automatic opening and closing tightening, and for the structural improvement of similar products. Brief Description of the Drawings

[0016] Figure 1 It is an exploded structural schematic diagram of the first embodiment of the present invention.

[0017] Figure 2 It is Figure 1 The three-dimensional structural schematic diagram after assembly. The dotted lines in the figure are the door assembly and the cabinet body.

[0018] Figure 3 It is Figure 2 The sectional and enlarged structural schematic diagram at the telescopic lock when the door assembly is in the closed state.

[0019] Figure 4 It is Figure 2 The three-dimensional structural schematic diagram of the automatic opening and closing tightening mechanism.

[0020] Figure 5 It is Figure 4 The internal structural schematic diagram with the lower cover opened. The lower cover is omitted in the figure.

[0021] Figure 6 It is Figure 5 The exploded structural schematic diagram.

[0022] Figure 7 It is Figure 5 The initial internal structural schematic diagram when the door assembly is in the opened state.

[0023] Figure 8 It is Figure 7 The initial internal structural schematic diagram when the door assembly of the second embodiment is in the opened state.

[0024] Figure 9 It is Figure 8 The internal structural schematic diagram when the switch door swing rod rack and the tightening pull rack move to the position where the square head of the tightening pull rack abuts against the lock tongue block during the closing process of the door.

[0025] Figure 10 It is Figure 9 The internal structural schematic diagram when the square head of the tightening pull rack pushes the lock tongue block to move during the closing process of the door.

[0026] Figure 11 It is Figure 10Schematic diagram of the internal structure before the square head of the rack is pulled over the locking tongue block after the steel wire rope is stretched and tightened during the door closing process.

[0027] Figure 12 is Figure 11 Schematic diagram of the internal structure after the slider is tightened and pulled to drive the locking tongue block to reset after the door closing is completed.

[0028] Figure 13 is Figure 12 Schematic diagram of the internal structure of the automatic switch tightening mechanism before the door opening process.

[0029] Figure 14 is Figure 2 Schematic diagram of the improved structure. The upper lock catch assembly, the lower lock catch assembly and the lock catch part are omitted in the figure.

[0030] Reference numerals and names of the drawings: 1. Machine cover, 2. Motor, 201. Motor driving gear, 3. Machine base, 4. Door opening and closing swing rod rack, 401. Rewinding idle notch, 5. Auxiliary rack, 6. Tightening and pulling rack, 601. Square head, 7. Motor linkage gear, 8. Door opening and closing gear, 9. Lower cover, 10. Door assembly, 1001. Door opening and closing track, 11. Cabinet body and cabinet base, 12. Sealing strip, 13. Upper lock catch assembly, 14. Steel wire rope, 15. Lock catch pull rod, 16. Lower lock catch assembly, 17. Support seat, 18. Track roller, 19. Cabinet door opening and closing swing rod, 20. PCB circuit board, 21. Door closing detection switch, 22. Guide block, 23. Tightening and pulling slider, 24. Steel wire rope tension spring, 25. Door opening detection switch, 26. Steel wire rope tightening detection switch, 27. Lock tongue block. Embodiment

[0031] Now, in combination with the drawings, the structure and use of the present invention will be further described. As Figures 1 - 13As shown in the figure, one side of the door panel of the door assembly 10 of the cabinet door is hinged to one side of the cabinet body 11 through upper and lower hinges. At the upper and lower parts of the other side of the cabinet body where the hinges are symmetrically located at the door opening, there are an upper locking latch assembly 13 and a lower locking latch assembly 16 respectively. A latch rod 15 is provided at the door opening of this side of the cabinet body between the upper locking latch assembly and the lower locking latch assembly. The steel wire rope 14 passes through the guide at the end corner of this side of the cabinet body door opening and the tensioning screw of the latch rod. At the same time, one end of the steel wire rope is respectively connected to the swinging latch tongues in the upper locking latch assembly and the lower locking latch assembly through deflection or branching. Locking parts are provided on the door panel at the corresponding door assembly of the upper locking latch assembly and the lower locking latch assembly. The other end of the above-mentioned steel wire rope is connected to one end of the tightening pull slider 23 fixed in the machine base 3 through the guide and the guide block 22. A tightening pull slider spring is provided at the other end of the tightening pull slider. The guide block is fixedly arranged in the machine base of the automatic switch tightening mechanism. On both sides of the motor linkage gear 7 below the tightening pull slider, there are a switch door swing rod rack 4 and a tightening pull rack 6 respectively. The motor linkage gear meshes with the motor driving 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 machine base of the automatic switch tightening mechanism through a circuit. Spring are provided at both ends of the switch door swing rod rack; while the tooth openings on the opposite sides of the tightening pull rack and the switch door swing rod rack are simultaneously meshed with the tooth rings on both sides of the motor linkage gear, a switch door gear 8 at a pin shaft at one end of the cabinet door switch swing rod 19 is meshed with the tooth opening of the switch door swing rod rack. A track roller 18 is arranged in the switch door track 1001 on the inner side of the door panel at the other pin shaft at the other end of the cabinet door switch swing rod. The automatic switch tightening mechanism is arranged at the upper inner top of the hinged side door opening of the cabinet body corresponding to the switch door track; a protruding square head 601 is provided at the top of one end of the tightening pull rack on one side of the cabinet door switch swing rod. A protruding latch block 27 is provided on the tightening pull slider above the square head. A latch block spring is provided at the rear of the latch block in the tightening pull slider. In the initial state, the square head of the tightening pull rack is located on one side of the vertical edge of the latch block. The symmetrical other end corner of the vertical edge of the latch block is an inclined end corner; both ends of the steel wire rope between the side where the steel wire rope extends out of the machine base and the guide block are connected through a steel wire rope tension spring 24; a reverse tape idling notch 401 is provided at the tooth opening on the side of the motor linkage gear of the switch door swing rod rack. Or a sub-rack 5 is provided in the chute of the switch door swing rod rack at the other end symmetrical to the meshing of the switch door gear at the cabinet door switch swing rod with the tooth opening of the switch door swing rod rack. A sub-rack spring is provided in the chute on one side of the sub-rack corresponding to the side where the steel wire rope extends out of the machine base.The above-mentioned motor and PCB circuit board are arranged in the chamber on one side of the machine base. There is a machine cover 1 at the chamber opening on this side. The other components are arranged in the chamber on the other side of the machine base. There is a lower cover 9 at the chamber opening on this side. The pin shaft at one end of the cabinet door switch swing rod is connected to the door opening and closing gear in the corresponding chamber through the lower cover. The PCB circuit board is provided with an infrared module. The above-mentioned upper locking latch assembly and lower locking latch assembly are a kind of telescopic lock driven by a steel wire rope to expand and contract.

[0032] At the same time, a door closing detection switch 21 triggered when the cabinet door switch swing rod reaches the closed position is provided at the cabinet door switch swing rod in the machine base. An open door detection switch 25 triggered when the cabinet door switch swing rod reaches the open position is provided at the tightening pull slider in the machine base. A steel wire rope tightening detection switch 26 triggered when the tightening pull rack tightens the steel wire rope is provided at the tightening pull rack in the machine base. A sealing strip 12 is provided at the door opening of the cabinet body, and support seats 17 are respectively provided at the bottom end corners of the cabinet body.

[0033] The cabinet door sends an unlocking or locking signal to the lock through infrared rays. The specific working principles of its unlocking and locking are as follows: After the motor receives the unlocking instruction, it works to drive the steel wire rope telescopic lock to unlock. After the telescopic lock is unlocked, the motor drives the cabinet door switch swing rod to work to open the door assembly in the specified direction. After the motor receives the locking instruction, it works. The motor drives the connecting rod to close the cabinet door, and then drives the telescopic lock to lock through the steel wire rope to complete the locking and closing work.

[0034] The specific operation of the cabinet door is as follows: When the door panel of the above-mentioned door assembly is driven by the cabinet door switch swing rod to close, the motor drives the motor linkage gear to rotate. The motor linkage gear drives the tightening pull rack and the door opening and closing swing rod rack to move in the opposite direction at the same time. The square head of the tightening pull rack abuts against the vertical edge of the lock tongue block to drive the tightening pull slider to move and tighten the steel wire rope. At the same time, the steel wire rope tightens to open the swing lock tongues in the upper locking latch assembly and the lower locking latch assembly until the lock fastener of the door panel is inserted into the swing lock tongues fixed in the upper locking latch assembly and the lower locking latch assembly, and the swing lock tongues are reset until the door assembly is closed. The motor continues to drive the motor linkage gear to rotate. The square head of the tightening pull rack passes over the vertical edge of the lock tongue block. The tightening pull rack returns by the reset of the tightening pull rack spring, and the steel wire rope loosens and resets. When the door panel of the door assembly is driven by the cabinet door switch swing rod to open, the motor drives the motor linkage gear to rotate in the opposite direction. The square head of the tightening pull rack passes over the inclined end angle of the lock tongue block. The motor linkage gear rotates forward again to drive the tightening pull slider to move and tighten the steel wire rope. When the lock fastener of the door panel disengages from the swing lock tongues in the upper locking latch assembly and the lower locking latch assembly, the motor linkage gear rotates in the opposite direction again until the door assembly is opened.

[0035] And further, in the case where the wire rope tension spring is provided as above: when the door panel of the above door assembly is driven by the cabinet door switch swing rod to close, the wire rope tension spring is pre-stretched, and the locking member of the door panel directly inserts into the upper locking latch assembly and the lower locking latch assembly. After the swing latch swings and then resets and locks, the wire rope tension spring stretches and then resets until the door assembly is closed, and the cabinet door switch swing rod triggers the door closing detection switch; when the door panel of the door assembly is driven by the cabinet door switch swing rod to open, the square head of the tightening pull rack abuts against the vertical edge of the latch block to drive the tightening pull slider to move and tighten the wire rope and the wire rope tension spring. At this time, after the tightening pull rack triggers the wire rope tightening detection switch, the wire rope and the wire rope tension spring continue to tighten and trigger the door opening detection switch through the tightening pull slider. At the same time as the locking member of the door panel disengages from the swing latches in the upper locking latch assembly and the lower locking latch assembly, the tightening pull rack returns by the tightening pull rack spring, and the wire rope loosens and resets. The square head of the tightening pull rack crosses the vertical edge of the latch block until the door assembly is opened.

[0036] According to the above structural characteristics, as Figure 14 shown, the upper locking latch assembly and the lower locking latch assembly of the cabinet body, and the corresponding locking members of the door panel at the door assembly can also be omitted.

[0037] To sum up, the cabinet door has the following advantages: 1. It has a quick unlocking function when receiving an opening command; 2. When closing the cabinet door, it is necessary to close the door first and then tighten; 3. It is controlled to open and close left and right by the motor gearbox remote arm link method; 4. The tightening lock connection method adopts the wire rope connection method; 5. When opening and closing the door, it is necessary to unlock the telescopic lock first and then open the cabinet door. When closing, it is necessary to close the door first and then tighten the telescopic lock to close the door.

Claims

1. A cabinet door with automatic switch tightening, wherein one side of the door panel of the door assembly (10) of the cabinet door is hinged to one side of the cabinet body (11) through an upper and lower hinge, and an upper closing lock catch assembly (13) and a lower closing lock catch assembly (16) are respectively provided at the upper and lower sides of the cabinet body door opening symmetrical to the hinge, and a lock catch pull rod (15) is provided at the cabinet body door opening on this side between the upper closing lock catch assembly and the lower closing lock catch assembly, and a steel wire rope (14) passes through a guide piece at the end corner of the cabinet body door opening on this side and a loose screw of the lock catch pull rod, and one end of the steel wire rope is connected to the swinging lock tongue in the upper closing lock catch assembly and the lower closing lock catch assembly respectively through deflection or branching, and a lock catch piece is provided at the door panel of the door assembly corresponding to the upper closing lock catch assembly and the lower closing lock catch assembly; characterized in that: The other end of the steel wire rope (14) is connected to one end of a tightening and pulling slider (23) fixed in the base (3) through the guide member and the 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 arranged in the base of the automatic switch tightening mechanism; the motor linkage gear (7) below the tightening and pulling slider is provided with a switch door swing rod rack (4) and a tightening and pulling rack (6) on both sides; the motor linkage gear is meshed with the motor driving 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 a line; the two ends of the switch door swing rod rack are provided with a switch door swing rod rack spring; the teeth of the tightening and pulling rack and the switch door swing rod rack on the opposite side are simultaneously When meshing with the gear rings on both sides of the motor linkage gear, the switch door gear (8) at a pin shaft at one end of the cabinet door switch swing rod (19) meshes with the tooth mouth of the switch door swing rod rack, and the track roller (18) at another pin shaft at the other end of the cabinet door switch swing rod is arranged in the switch door track (1001) on the inner side of the door panel at the door assembly (10), and the automatic switch tightening mechanism is arranged at the inner top above the hinged side door opening of the cabinet body (11) corresponding to the switch door track; a raised square head (601) is provided at the top of one end of the tightening pull rack on one side of the cabinet door switch swing rod, and a tightening pull slider above the square head is provided with a protruding lock tongue block (27), and a lock tongue block spring is provided at the rear of the lock tongue block in the tightening pull slider, and in the initial state, the square head of the tightening pull rack is located on one side of the vertical side of the lock tongue block, and the end angle on the other side of the vertical side of the lock tongue block is an oblique end angle; When the door panel of the door assembly is driven to close by the cabinet door switch swing rod, the motor drives the motor linkage gear to rotate, and the motor linkage gear drives the tightening and pulling rack and the door switch swing rod rack to move in opposite directions at the same time, and the square head of the tightening and pulling rack abuts against the vertical edge of the lock tongue block to drive the tightening and pulling slider to move and tighten the wire rope. At the same time, the wire rope is tightened to open the swinging lock tongue in the upper lock catch assembly (13) and the lower lock catch assembly (16), until the lock piece of the door panel is inserted into the swinging lock tongue fixed in the upper lock catch assembly and the lower lock catch assembly, and the swinging lock tongue is reset until the door assembly is closed; the motor continues to drive The motor-linked gear rotates, the square head of the tightening and pulling rack passes over the vertical edge of the lock tongue block, the tightening and pulling rack is reset and retreated by the tightening and pulling rack spring, and the steel wire rope is loosened and reset; when the door panel of the door assembly is driven to open by the cabinet door switch swing rod, the motor drives the motor-linked gear to rotate in the opposite direction, the square head of the tightening and pulling rack passes over the oblique end angle of the lock tongue block, the motor-linked gear rotates forward again to drive the tightening and pulling slider to move and tighten the steel wire rope, and the lock piece of the door panel disengages from the swinging lock tongue in the upper closing lock lock lock assembly and the lower closing lock lock lock lock assembly to open. At the same time, the motor-linked gear rotates in the opposite direction again until the door assembly is opened.

2. The cabinet door with automatic opening and closing according to claim 1 is characterized in that The two ends of the steel wire rope (14) extending from one side of the base (3) and between the guide block (22) are connected via a steel wire rope tension spring (24); when the door panel of the door assembly (10) is driven to close via the cabinet door switch swing rod (19), the steel wire rope tension spring is pre-stretched, and the lock piece of the door panel is directly inserted into and fixed to the upper lock catch assembly (13) and the lower lock catch assembly (16), and the swinging lock tongue is reset and locked after swinging, and the steel wire rope tension spring is reset after being stretched until the door assembly is closed; the door assembly When the door panel of the cabinet door switch is driven to open by the cabinet door switch swing rod, the square head (601) of the tightening pull rack (6) abuts against the vertical edge of the lock tongue block, driving the tightening pull slider (23) to move and tighten the wire rope and the wire rope tension spring, and the lock member of the door panel is disengaged from the swing lock tongue in the upper lock lock assembly and the lower lock lock assembly. At the same time, the tightening pull rack is reset and retracted by the tightening pull rack spring, and the wire rope is loosened and reset, and 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 according to claim 1 is characterized in that The switch door gear (8) at the cabinet door switch swing rod (19) is symmetrically meshed with the teeth of the switch door swing rod rack (4), and a secondary rack (5) is provided in the slide groove at the switch door swing rod rack at the other end. A secondary rack spring is provided in the slide groove on the side of the secondary rack corresponding to the side where the wire rope (14) in the machine base (3) extends out.

4. The cabinet door with automatic opening and closing according to claim 1 is characterized in that A rewinding idle notch (401) is provided at one side of the tooth opening of the motor linkage gear (7) of the door opening and closing swing lever rack (4).

5. The cabinet door with automatic opening and closing according to claim 1 is characterized in that A door closing detection switch (21) is provided at the cabinet door switch swing rod (19) in the machine base (3) and is triggered when the cabinet door switch swing rod is fully closed.

6. The cabinet door with automatic opening and closing according to claim 1 is characterized in that A door opening detection switch (25) is provided at the tightening and pulling slide block (23) in the machine base (3) and is triggered when the cabinet door switch swing rod (19) opens the door in place.

7. The cabinet door with automatic opening and closing according to claim 1 is characterized in that A wire rope tightening detection switch (26) is provided at the tightening pulling rack (6) in the machine base (3) and is triggered when the tightening pulling rack tightens the wire rope (14).

8. The cabinet door with automatic opening and closing according to claim 1 is characterized in that A sealing strip (12) is provided at the door of the cabinet (11).

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

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

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