Double-shaft door lock device of high-voltage power distribution cabinet

Abstract

The invention discloses a double-shaft door lock device of a high-voltage power distribution cabinet. The double-shaft door lock device comprises a cabinet door, a rotating shaft, a lock pin, a handle, a servo motor, a clamping column, an electromagnetic adsorption assembly and a Hall element. The rotating shaft is rotationally connected to the cabinet door through a first elastic piece, and a locking gear and a driving gear are connected to the rotating shaft; the lock pins are arranged on the cabinet door in a sliding mode in the vertical direction, the opposite sides of the two lock pins are connected with racks, and the two racks are meshed with the locking gear. The handle is rotatably arranged on the cabinet door, a chuck is arranged on the handle, and a clamping groove is formed in the chuck; the servo motor is slidably arranged on the cabinet door, a body of the servo motor is in transmission connection with the handle, and the handle is used for driving the servo motor to be close to or away from the driving gear; the clamping column is driven by the second elastic piece to be clamped into the chuck and used for being inserted into the clamping groove to brake the handle. The electromagnetic adsorption assembly is used for adsorbing the clamping column to keep the clamping column away from the chuck; the Hall element is electrically connected to a loop of the electromagnetic adsorption assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a double-axis door lock device for a high-voltage power distribution cabinet. Background Art

[0002] High voltage distribution cabinet is a common power distribution product.

[0003] In the past, the door of the high-voltage distribution cabinet was opened simply by using a key, which was similar to unlocking an ordinary home door. If the distribution cabinet leaked electricity, opening the door would easily put the operator in danger, which was not safe enough. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a dual-axis door lock device for a high-voltage power distribution cabinet, which can lock the cabinet door when the power distribution cabinet leaks electricity to avoid danger caused by opening the cabinet door.

[0005] According to the first aspect of the present invention, a double-axis door lock device for a high-voltage power distribution cabinet comprises: a cabinet door; a rotating shaft, which is rotatably connected to the cabinet door through a first elastic member, and a locking gear and a driving gear are connected to the rotating shaft; a lock pin, which is slidably arranged on the cabinet door in the up and down directions, and two lock pins are provided, and racks are connected to the opposite sides of the two lock pins, and the two lock pins are arranged on both sides of the locking gear, and the two racks are respectively engaged with the two sides of the locking gear, and the first elastic member is used to drive the rotating shaft to drive the lock pin to remain in the locked position; a handle, which is rotatably arranged on the cabinet door, and a chuck is arranged on the handle, and a card slot is arranged on the chuck; a servo motor, which is slidably arranged on the cabinet door, and the body of the servo motor is connected to the cabinet door through a connecting rod mechanism. The handle is used to drive the servo motor to approach or move away from the driving gear, and the servo motor is used to drive the driving gear to rotate; a card column is connected to the cabinet door through a second elastic member, and the second elastic member is used to drive the card column to be clamped into the chuck, and the card column is used to be inserted into the slot to brake the handle; an electromagnetic adsorption component is arranged on the cabinet door, and the electromagnetic adsorption component can adsorb or release the card column so that the card column is away from the chuck or approaches the chuck under the action of the second elastic member; a Hall element is arranged on the cabinet door, and the Hall element is electrically connected to the circuit of the electromagnetic adsorption component. The Hall element is used to detect the change of the magnetic field in the distribution cabinet so that the electromagnetic adsorption component adsorbs or releases the card column.

[0006] A double-axis door lock device for a high-voltage power distribution cabinet according to an embodiment of the present invention has at least the following beneficial effects: the rotating shaft is integrated with the locking gear and the driving gear so that the locking pin can be driven and locked by the locking gear, the driving gear and the servo motor cooperate to realize the electric unlocking of the cabinet door, the handle is arranged so that the servo motor is close to and connected to the driving gear, and the electromagnetic adsorption component, the clamping column and the Hall element together constitute a leakage sensing system. When leakage in the high-voltage power distribution cabinet generates an additional magnetic field, the Hall element can sense the change in the magnetic field, so that the electromagnetic adsorption component can decide to adsorb the clamping column or release the clamping column according to the leakage situation, ensuring that the clamping column is released in the case of leakage, and the clamping column is inserted into the chuck to limit the rotation of the handle, so that the servo motor cannot approach the driving gear, so that the cabinet door cannot be opened. The double-axis door lock device for a high-voltage power distribution cabinet of the present invention has a simple structure, and each component assembly is linked to improve safety and avoid dangerous situations caused by opening the cabinet door by mistake.

[0007] According to some embodiments of the present invention, a loading carrier is provided on the cabinet door, a supporting rail groove is provided on the loading carrier, the locking pin is slidably connected in the supporting rail groove, and the loading carrier provides support for the locking pin to prevent the sliding path of the locking pin from changing when the locking pin is driven, thereby reducing the impact of the inability to lock the cabinet door caused by the bending of the locking pin due to limited strength.

[0008] According to some embodiments of the present invention, support rollers are provided at the bottom and sides of the support rail groove, and the locking pin abuts against the support rollers. The support rollers improve the smoothness of the sliding of the locking pin and ensure the smoothness of the locking process.

[0009] According to some embodiments of the present invention, a sealing plate is provided at the outlet end of the support rail groove, and the sealing plate is hinged to the loading body via a third elastic member, and the third elastic member is used to drive the sealing plate to seal the outlet end of the support rail groove. The sealing plate prevents dust from falling into the support rail groove and hindering the sliding of the locking pin, thereby improving the service life and maintenance time span, and the third elastic member enables the sealing plate to maintain a normally closed state relative to the outlet end of the support rail groove.

[0010] According to some embodiments of the present invention, the chuck is configured to be disc-shaped, and a plurality of the clamping grooves are provided, and the clamping grooves are extended radially along the chuck.

[0011] According to some embodiments of the present invention, a drying component is further included. The drying component is arranged on the cabinet door, and the drying component is used to absorb moisture in the distribution cabinet to prevent moisture in the distribution cabinet from causing a creepage effect.

[0012] According to some embodiments of the present invention, the drying component includes: a loading box, which is detachably mounted on a side of the cabinet door close to the power distribution cabinet, and is used to load hygroscopic filler blocks; a negative pressure pump, which is connected to the loading box and is arranged on a side of the cabinet door away from the power distribution cabinet, and is used to absorb air in the power distribution cabinet and pass the air through the loading box. The drying component has a simple structure, and the hygroscopic filler blocks can be replaced at any time.

[0013] According to some embodiments of the present invention, a dust suction assembly is further included, wherein the dust suction assembly is installed at the lower end of the cabinet door, and the dust suction assembly is used to suction dust when the cabinet door is opened.

[0014] According to some embodiments of the present invention, a strip opening is provided at the lower end of the cabinet door, and the dust suction assembly includes a strip suction nozzle and a three-way solenoid valve, wherein the strip suction nozzle is installed in the strip opening, the air inlet end of the three-way solenoid valve is connected to the negative pressure pump, and the two air suction ends of the three-way solenoid valve are respectively connected to the loading box and the strip suction nozzle, and the three-way solenoid valve is used to control the negative pressure pump to connect to the loading box or the strip suction nozzle. The dust suction assembly has a simple structure and is connected to the negative pressure pump through the three-way solenoid valve, so that the negative pressure pump can drive the loading box or the strip suction nozzle. When the door is closed, the negative pressure pump is connected to the strip suction nozzle for dehumidification. When the door is opened, because the contact surface with the air is too large, the dehumidification part must be closed and the dust suction part must be opened. At this time, the negative pressure pump is connected to the strip suction nozzle, and the strip suction nozzle changes the direction of the negative pressure dust suction effect caused by opening the door through suction, so that dust no longer enters the inside of the power distribution cabinet.

[0015] According to some embodiments of the present invention, an insulating cover is provided on a side of the cabinet door close to the power distribution cabinet, and the insulating cover is used to shield functional components loaded on the inner wall of the cabinet door.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic structural diagram of a double-axis door lock device for a high-voltage power distribution cabinet according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 An exploded view of a double-axis door lock device for a high-voltage power distribution cabinet is shown;

[0020] Figure 3 for Figure 1 A schematic diagram of the handle side of the double-axis door lock device of the high-voltage distribution cabinet is shown;

[0021] Figure 4 for Figure 2 The enlarged view of point A in the middle;

[0022] Figure 5 for Figure 1 The schematic diagram of the structure of the carrier of the double-axis door lock device of the high-voltage distribution cabinet is shown.

[0023] Cabinet door 100, carrier 110, support track groove 111, support roller 112, blocking plate 113, third elastic member 114;

[0024] Drying assembly 120, loading box 121, negative pressure pump 122;

[0025] Dust collection assembly 130, strip suction nozzle 131, three-way solenoid valve 132;

[0026] Strip opening 140;

[0027] The rotating shaft 200, the first elastic member 210, the locking gear 220, and the driving gear 230;

[0028] Lock pin 300, rack 310;

[0029] Handle 400, chuck 410, and slot 411;

[0030] Servo motor 500, clamping column 600, second elastic member 610;

[0031] Electromagnetic adsorption component 700 and Hall element 800. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figures 1 to 5A double-axis door lock device for a high-voltage power distribution cabinet includes: a cabinet door 100, a rotating shaft 200, a locking pin 300, a handle 400, a servo motor 500, a clamping column 600, an electromagnetic adsorption component 700 and a Hall element 800; the rotating shaft 200 is rotatably connected to the cabinet door 100 through a first elastic member 210, and a locking gear 220 and a driving gear 230 are connected to the rotating shaft 200; the locking pin 300 is slidably arranged on the cabinet door 100 in the up and down directions. The lock pins 300 are provided with two, and the opposite sides of the two lock pins 300 are connected with racks 310, the two lock pins 300 are respectively provided on both sides of the locking gear 220, and the two racks 310 are respectively engaged with the two sides of the locking gear 220, and the first elastic member 210 is used to drive the rotating shaft 200 to drive the lock pins 300 to remain in the locked position; the handle 400 is rotatably provided on the cabinet door, and the handle 400 is provided with a chuck 410, and the chuck 410 is provided with A card slot 411 is provided; the servo motor 500 is slidably arranged on the cabinet door 100, and the body of the servo motor 500 is connected to the handle 400 through a connecting rod mechanism. The handle 400 is used to drive the servo motor to approach or move away from the driving gear 230, and the servo motor 500 is used to drive the driving gear 230 and drive the driving gear 230 to rotate; the card column 600 is connected to the cabinet door 100 through a second elastic member 610, and the second elastic member 610 is used to drive the card column 600 to be clamped into the chuck 410, and the card column 600 is used to be inserted into the card slot 411 to brake the handle 400; the electromagnetic adsorption component 700 is arranged on the cabinet door 100, and the electromagnetic adsorption component 700 is used to adsorb the card column to keep the card column 600 away from the chuck 410; the Hall element 800 is arranged on the cabinet door 100, and the Hall element 800 is electrically connected to the circuit of the electromagnetic adsorption component 700, and the Hall element 800 is used to detect the change of the magnetic field in the distribution cabinet. It is understandable that the connecting rod mechanism includes a crank slider mechanism or a four-bar mechanism, etc.; the body of the servo motor 500 can also be driven to move by a gear rack or a screw nut pair, and the body of the servo motor 500 can be driven to move by a linear motion mechanism. The card slot 411 is set to be narrowed toward the center along the radial direction of the chuck 410, and there are two card slots 411, and the two card slots 411 are cross-shaped. The electromagnetic adsorption component 700 is set on the cabinet door 100, and the electromagnetic adsorption component 700 can adsorb or release the card column, so that the card column 600 is away from the chuck 410 or approaches the chuck 410 under the action of the second elastic member 610. The Hall element 800 is set on the cabinet door 100, and the Hall element 800 is electrically connected to the circuit of the electromagnetic adsorption component 700. The Hall element 800 is used to detect the change of the magnetic field in the distribution cabinet, so that the electromagnetic adsorption component 700 adsorbs or releases the card column 600.

[0037] The rotating shaft 200 integrates the locking gear 220 and the driving gear 230 so that the locking pin 300 can be driven and locked by the locking gear 220. The driving gear 230 and the servo motor 500 cooperate to realize the electric unlocking of the cabinet door. The handle 400 makes the servo motor 500 approach and drive the driving gear 230. The electromagnetic adsorption component 700, the clamping column 600 and the Hall element 800 together form a leakage induction system. When the leakage in the high-voltage distribution cabinet generates an additional magnetic field, the Hall element 800 can sense the magnetic field. Changes, so that the electromagnetic adsorption component 700 can decide to adsorb the card column 600 or release the card column 600 according to the leakage situation, to ensure that the card column 600 is released in the case of leakage, and the card column 600 is inserted into the chuck 410 to limit the rotation of the handle 400, so that the servo motor 500 cannot approach the drive gear 230, so that the cabinet door 100 cannot be opened. The double-axis door lock device of the high-voltage power distribution cabinet of the present invention has a simple structure, and each component assembly is linked to improve safety and avoid dangerous situations caused by opening the cabinet door by mistake. It can be understood that the electromagnetic adsorption component 700 is a conventional electromagnet component. After the Hall element 800 receives the information of the magnetic field change, it controls the electromagnet component circuit to be turned on through a controller, such as a PLC or a computer, to generate suction.

[0038] In some embodiments, a loading carrier 110 is provided on the cabinet door 100, and a supporting rail groove 111 is provided on the loading carrier 110. The locking pin 300 is slidably connected in the supporting rail groove 111. The loading carrier 110 is provided to provide support for the locking pin 300 to prevent the sliding path from changing when the locking pin 300 is driven, thereby reducing the impact of the inability to lock the cabinet door 100 caused by the bending of the locking pin 300 due to limited strength.

[0039] In some embodiments, support rollers 112 are provided at the bottom and sides of the support track groove 111 , and the locking pin 300 abuts against the support rollers 112 . The support rollers 112 improve the smoothness of the sliding of the locking pin 300 and ensure the smoothness of the locking process.

[0040] In some embodiments, a blocking plate 113 is provided at the outlet end of the support rail groove 111. The blocking plate 113 is hinged on the loading body 110 through a third elastic member 114. The third elastic member 114 is used to drive the blocking plate 113 to block the outlet end of the support rail groove 111. The blocking plate 113 prevents dust from falling into the support rail groove 111 to hinder the sliding of the locking pin 300, thereby improving the service life and maintenance time span. The third elastic member 114 enables the blocking plate 113 to maintain a normally closed state relative to the outlet end of the support rail groove 111.

[0041] In some embodiments, the chuck 410 is configured to be disc-shaped, and a plurality of slots 411 are provided, and the slots 411 are extended along the radial direction of the chuck 410 .

[0042] In some embodiments, a drying component 120 is further included. The drying component 120 is disposed on the cabinet door 100 and is used to absorb moisture in the power distribution cabinet to prevent moisture in the power distribution cabinet from causing a creepage effect.

[0043] In some embodiments, the drying component 120 includes: a loading box 121, which is detachably mounted on a side of the cabinet door 100 close to the power distribution cabinet, and the loading box 121 is used to load a hygroscopic filler block; a negative pressure pump 122, which is connected to the loading box 121, and the negative pressure pump 122 is arranged on a side of the cabinet door 100 away from the power distribution cabinet, and the negative pressure pump 122 is used to absorb the air in the power distribution cabinet and pass the air through the loading box 121. The drying component 120 has a simple structure, and the hygroscopic filler block can be replaced at any time. It is understandable that the hygroscopic filler block can be a desiccant block, a silica gel block, a lime bag, etc.

[0044] In some embodiments, a dust collection assembly 130 is further included. The dust collection assembly 130 is installed at the lower end of the cabinet door 100. The dust collection assembly 130 is used to collect dust when the cabinet door 100 is opened.

[0045] In some embodiments, a strip opening 140 is provided at the lower end of the cabinet door 100, and the dust collection assembly 130 includes a strip suction nozzle 131 and a three-way solenoid valve 132. The strip suction nozzle 131 is installed in the strip opening 140, and the air inlet end of the three-way solenoid valve 132 is connected to the negative pressure pump 122. The two air suction ends of the three-way solenoid valve 132 are respectively connected to the loading box 121 and the strip suction nozzle 131. The three-way solenoid valve 132 is used to control the negative pressure pump 122 to connect to the loading box 121 or to connect to the strip suction nozzle 131. The dust collection assembly 130 has a simple structure. , connected to the negative pressure pump 122 through the three-way solenoid valve 132, so that the negative pressure pump 122 can drive the loading box 121 or the strip suction nozzle 131. When the door is closed, the negative pressure pump 122 is connected to the strip suction nozzle 131 for dehumidification. When the door is opened, because the contact surface with the air is too large, the dehumidification part must be closed and the dust collection part must be opened. At this time, the negative pressure pump 122 is connected to the strip suction nozzle 131, and the strip suction nozzle 131 changes the direction of the negative pressure dust collection effect caused by opening the door through suction, so that dust no longer enters the inside of the distribution cabinet.

[0046] In some embodiments, an insulating cover is provided on one side of the cabinet door 100 close to the power distribution cabinet, and the insulating cover is used to shield the functional components loaded on the inner wall of the cabinet door 100 .

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A double-axis door lock device for a high-voltage power distribution cabinet, characterized in that: include: Cabinet door (100); A rotating shaft (200) is rotatably connected to the cabinet door (100) via a first elastic member (210), and a locking gear (220) and a driving gear (230) are connected to the rotating shaft (200); A lock pin (300) is slidably arranged on the cabinet door (100) in an up-down direction, two lock pins (300) are arranged, and racks (310) are connected to opposite sides of the two lock pins (300). The two lock pins (300) are arranged on both sides of the locking gear (220), and the two racks (310) are respectively meshed with both sides of the locking gear (220), and the first elastic member (210) is used to drive the rotating shaft (200) so as to drive the lock pin (300) to remain in the locked position; A handle (400) is rotatably arranged on the cabinet door, a chuck (410) is arranged on the handle (400), and a chuck slot (411) is arranged on the chuck (410); A servo motor (500) is slidably disposed on the cabinet door (100); the body of the servo motor (500) is connected to the handle (400) through a connecting rod mechanism; the handle (400) is used to drive the servo motor to move closer to or farther from the driving gear (230); and the servo motor (500) is connected to the driving gear (230) and drives the driving gear (230) to rotate; A clamping column (600) is connected to the cabinet door (100) via a second elastic member (610), wherein the second elastic member (610) is used to drive the clamping column (600) to be clamped into the clamping disc (410), and the clamping column (600) is used to be inserted into the clamping slot (411) to brake the handle (400); An electromagnetic adsorption component (700) is arranged on the cabinet door (100), and the electromagnetic adsorption component (700) is capable of adsorbing or releasing the clamping column, so that the clamping column (600) is moved away from the clamping disk (410) or approaches the clamping disk (410) under the action of the second elastic member (610); A Hall element (800) is arranged on the cabinet door (100), and the Hall element (800) is electrically connected to the circuit of the electromagnetic adsorption component (700). The Hall element (800) is used to detect the change of the magnetic field in the power distribution cabinet so that the electromagnetic adsorption component (700) adsorbs or releases the clamping column (600).

2. A double-axis door lock device for a high-voltage power distribution cabinet according to claim 1, characterized in that: The cabinet door (100) is provided with a loading body (110), the loading body (110) is provided with a supporting track groove (111), and the locking pin (300) is slidably connected in the supporting track groove (111).

3. A double-axis door lock device for a high-voltage power distribution cabinet according to claim 2, characterized in that: The bottom and side surfaces of the support track groove (111) are both provided with support rollers (112), and the locking pin (300) abuts against the support rollers (112).

4. A double-axis door lock device for a high-voltage power distribution cabinet according to claim 3, characterized in that: A blocking plate (113) is provided at the outlet end of the support track groove (111); the blocking plate (113) is hinged to the loading body (110) via a third elastic member (114); the third elastic member (114) is used to drive the blocking plate (113) to block the outlet end of the support track groove (111).

5. A double-axis door lock device for a high-voltage power distribution cabinet according to claim 1, characterized in that: The chuck (410) is configured to be in a disc shape, and a plurality of the clamping grooves (411) are provided, and the clamping grooves (411) are extended along the radial direction of the chuck (410).

6. A dual-axis door lock device for a high-voltage power distribution cabinet according to any one of claims 1 to 5, characterized in that: It also includes a drying component (120), which is arranged on the cabinet door (100) and is used to absorb moisture in the power distribution cabinet.

7. A double-axis door lock device for a high-voltage power distribution cabinet according to claim 6, characterized in that: The drying component (120) comprises: A loading box (121) is detachably mounted on a side of the cabinet door (100) close to the power distribution cabinet, and the loading box (121) is used to load hygroscopic filler blocks; A negative pressure pump (122) is connected to the loading box (121), and the negative pressure pump (122) is arranged on a side of the cabinet door (100) away from the power distribution cabinet. The negative pressure pump (122) is used to absorb air in the power distribution cabinet and allow the air to pass through the loading box (121).

8. A dual-axis door lock device for a high-voltage power distribution cabinet according to claim 7, characterized in that: It also includes a dust collection component (130), which is installed at the lower end of the cabinet door (100). The dust collection component (130) is used to collect dust when the cabinet door (100) is opened.

9. A dual-axis door lock device for a high-voltage power distribution cabinet according to claim 8, characterized in that: The lower end of the cabinet door (100) is provided with a strip opening (140), and the dust collection assembly (130) includes a strip suction nozzle (131) and a three-way solenoid valve (132). The strip suction nozzle (131) is installed in the strip opening (140), and the air inlet end of the three-way solenoid valve (132) is connected to the negative pressure pump (122). The two air suction ends of the three-way solenoid valve (132) are respectively connected to the loading box (121) and the strip suction nozzle (131), and the three-way solenoid valve (132) is used to control the negative pressure pump (122) to connect to the loading box (121) or connect to the strip suction nozzle (131).

10. A double-axis door lock device for a high-voltage power distribution cabinet according to claim 1, characterized in that: An insulating cover is provided on one side of the cabinet door (100) close to the power distribution cabinet, and the insulating cover is used to cover the functional components loaded on the inner wall of the cabinet door (100).

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