Cabinet door opening and closing device of switch cabinet

Abstract

The cabinet door opening and closing device comprises a cabinet body and a cabinet door hinged to the cabinet body, a first connecting rod is fixedly connected to the upper wall of an inner cavity of the cabinet body, a sensor is rotationally connected to the lower end of the first connecting rod, and a second connecting rod is arranged on the side, close to the cabinet door, of the upper wall of the inner cavity of the cabinet body; an inclined sliding rod is fixedly connected to the tail end of the second connecting rod, a first contact piece is slidably connected to the inclined sliding rod, a second contact piece is fixedly connected to the inclined sliding rod, the cabinet door and the second contact piece are elastically connected through a spring, and a rotating assembly is installed below the right wall of the inner cavity of the cabinet body. The sensor controls rotation of the rotating assembly by processing a signal, the cabinet door is automatically closed after a person leaves and does not close the door, the first contact piece slides downwards after the cabinet door is closed, the first contact piece and the second contact piece are separated, the sensor stops working, and automatic closing of the sensor is achieved. And electronic components and circuits in the switch cabinet are effectively protected by automatically closing the cabinet door.

Description

Technical Field

[0001] The present application relates to the technical field of opening and closing devices, and in particular to an opening and closing device for a door of a switch cabinet. Background Art

[0002] Switchgear is an electrical equipment, which is mainly used to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and energy conversion in the power system. The components in the switchgear mainly include circuit breakers, disconnectors, load switches, operating mechanisms, transformers and various protection devices.

[0003] Traditional switch cabinet doors need to be closed manually. There are many electronic components and power lines inside the switch cabinet, which are easily damaged and cause losses. After the work is completed, the cabinet door needs to be kept closed. Technicians may forget to close the cabinet door after the work, causing damage to the components inside the cabinet.

[0004] 'CN209766892U' A cabinet door opening and closing device for a switch cabinet " discloses that the switch cabinet is closed by releasing a button. However, during the use of the cabinet door opening and closing device, the cabinet door is closed after the button is released. During the use of the switch cabinet, the button needs to be pressed all the time, which affects the actual operation process of the technician. Therefore, in order to solve the above problem, the present application provides a cabinet door opening and closing device for a switch cabinet.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to solve the problem that the service life of internal electronic components is affected by dust and other factors due to failure to close the door in time, the present application provides a door opening and closing device for a switch cabinet.

[0007] The present application provides a cabinet door opening and closing device for a switch cabinet, comprising a cabinet body and a cabinet door hinged to the cabinet body, wherein a first connecting rod is fixedly connected to the upper wall of the inner cavity of the cabinet body, a sensor is rotatably connected to the lower end of the first connecting rod, a second connecting rod is provided on the upper wall of the inner cavity of the cabinet body close to the cabinet door, an inclined sliding rod is fixedly connected to the end of the second connecting rod, a first contact piece is slidably connected to the inclined sliding rod, a second contact piece is fixedly connected to the inclined sliding rod, the cabinet door and the first contact piece are elastically connected by a spring, a rotating assembly is installed below the right wall of the inner cavity of the cabinet body, and the sensor and the rotating assembly are communicatively connected.

[0008] Preferably, the sensor recognition range is the front side of the cabinet body, and the sensor is activated by the contact between the first contact piece and the second contact piece.

[0009] Preferably, after the cabinet door is opened, the first contact piece is pulled tightly against the second contact piece by a spring.

[0010] Preferably, the inclined sliding rod is fixedly connected to the second connecting rod at an angle of 120°, and one end of the inclined sliding rod away from the second connecting rod faces the rear side of the cabinet body cavity.

[0011] Preferably, the rotating assembly includes a motor, the rotating shaft of the motor is fixedly connected to the first rotating rod, the second fixed block is fixedly connected to the lower inner side of the cabinet door, the second fixed block is rotatably connected to the second rotating rod, and the first rotating rod and the second rotating rod are rotatably connected.

[0012] Preferably, a first fixing block is fixedly connected to the upper inner portion of the cabinet door, the spring and the first fixing block are fixedly connected, and the first fixing block is located close to a hinge position between the cabinet body and the cabinet door.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] The sensor detects that the technician is not in front of the cabinet, and the processor sends a command to the motor. The motor starts to run, driving the first rotating rod to rotate. The rotation of the first rotating rod causes the second rotating rod to rotate as well, thereby closing the cabinet door. The cabinet door of the switch cabinet is automatically closed when a person leaves without closing the door. Compared with existing devices, the automatic closing of the cabinet door effectively protects the electronic components and circuits in the switch cabinet.

[0015] After the cabinet door is closed, the first contact piece slides downward, the first contact piece and the second contact piece are separated, and the sensor stops working, thereby achieving automatic shutdown of the sensor. Compared with the existing device, the sensor stops working in time, effectively saving energy and achieving economy and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure in Example 1 of the present application;

[0017] Figure 2 It is an enlarged view of part A in Example 1 of the present application;

[0018] Figure 3 is a schematic diagram of a rotating assembly in Embodiment 1 of the present application;

[0019] Figure 4 This is a schematic diagram of the operation of the tilt slide bar in Example 1 of the present application.

[0020] Explanation of the accompanying drawings: 1. cabinet body; 2. cabinet door; 31. first connecting rod; 32. sensor; 33. first contact piece; 34. tilt slide rod; 35. second connecting rod; 41. second contact piece; 42. spring; 43. first fixed block; 5. rotating assembly; 501. motor; 502. first rotating rod; 503. second rotating rod; 504. second fixed block. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] Embodiment 1

[0023] Reference Figure 1-4 A cabinet door opening and closing device for a switch cabinet comprises a cabinet body 1 and a cabinet door 2 hinged to the cabinet body 1, a first connecting rod 31 is fixedly connected to the upper wall of the inner cavity of the cabinet body 1, a sensor 32 is rotatably connected to the lower end of the first connecting rod 31, a second connecting rod 35 is provided on the side of the upper wall of the inner cavity of the cabinet body 1 close to the cabinet door 2, an inclined slide bar 34 is fixedly connected to the end of the second connecting rod 35, and the angle between the two is 120°, and the end of the inclined slide bar 34 away from the second connecting rod 35 faces the rear side of the cabinet body 1 cavity. A first contact piece 33 is slidably connected to the inclined slide bar 34, and a second contact piece 41 is fixedly connected to the inclined slide bar 34. A first fixed block 43 is fixedly connected to the upper inner side of the cabinet door 2, and the position of the first fixed block 43 is close to the hinge position of the cabinet body 1 and the cabinet door 2. The first fixed block 43 and the first contact piece 33 are elastically connected by a spring 42, and a rotating component 5 is installed below the right wall of the inner cavity of the cabinet body 1. After the cabinet door 2 is opened, the first contact piece 33 is pulled tightly against the second contact piece 41 by the spring 42. The first contact piece 33 and the second contact piece 41 are connected to the circuit of the sensor 32. The sensor 32 is turned on by the contact between the first contact piece 33 and the second contact piece 41. The sensor 32 is a thermal infrared human body sensor, and the recognition range is the front side of the cabinet body 1. When the recognition signal for the human body disappears, the rotation of the rotating assembly 5 is controlled by the processor. The rotating assembly 5 includes a motor 501, the rotating shaft of the motor 501 is fixedly connected to the first rotating rod 502, the second fixed block 504 is fixedly connected to the lower inner side of the cabinet door 2, the second fixed block 504 is rotatably connected to the second rotating rod 503, the first rotating rod 502 and the second rotating rod 503 are rotatably connected, the rotation of the rotating assembly 5 drives the cabinet door 2 to rotate, and when the cabinet door 2 is completely closed, the rotating assembly 5 stops working. The cabinet door 2 is completely closed, the spring 42 is relaxed, and due to the action of gravity, the first contact piece 33 slides backward on the inclined slide bar 34, disconnecting from the second contact piece 41, and the sensor 32 stops working.

[0024] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cabinet door opening and closing device for a switch cabinet, comprising a cabinet body (1) and a cabinet door (2) hinged to the cabinet body (1), characterized in that: A first connecting rod (31) is fixedly connected to the upper wall of the inner cavity of the cabinet body (1), and a sensor (32) is rotatably connected to the lower end of the first connecting rod (31). A second connecting rod (35) is provided on the side of the upper wall of the inner cavity of the cabinet body (1) close to the cabinet door (2), and an inclined sliding rod (34) is fixedly connected to the end of the second connecting rod (35). A first contact piece (33) is slidably connected to the inclined sliding rod (34), and a second contact piece (41) is fixedly connected to the inclined sliding rod (34). The cabinet door (2) and the first contact piece (33) are elastically connected via a spring (42). A rotating assembly (5) is installed below the right wall of the inner cavity of the cabinet body (1), and the sensor (32) and the rotating assembly (5) are communicatively connected.

2. The door opening and closing device of a switch cabinet according to claim 1, characterized in that: The sensor (32) has an identification range of the front side of the cabinet body (1), and the sensor (32) is activated by contact between the first contact piece (33) and the second contact piece (41).

3. The door opening and closing device of a switch cabinet according to claim 1, characterized in that: After the cabinet door (2) is opened, the first contact piece (33) is pulled by the spring (42) to tightly fit the second contact piece (41).

4. The door opening and closing device of a switch cabinet according to claim 1, characterized in that: The inclined sliding rod (34) is fixedly connected to the second connecting rod (35) at an angle of 120 degrees, and one end of the inclined sliding rod (34) away from the second connecting rod (35) faces the rear side of the cavity of the cabinet body (1).

5. The door opening and closing device of a switch cabinet according to claim 1, characterized in that: The rotating assembly (5) comprises a motor (501), the rotating shaft of the motor (501) is fixedly connected to a first rotating rod (502), a second fixed block (504) is fixedly connected to the lower inner side of the cabinet door (2), the second fixed block (504) is rotatably connected to a second rotating rod (503), and the first rotating rod (502) and the second rotating rod (503) are rotatably connected.

6. The door opening and closing device of a switch cabinet according to claim 1, characterized in that: A first fixing block (43) is fixedly connected to the upper inner portion of the cabinet door (2), the spring (42) and the first fixing block (43) are fixedly connected, and the first fixing block (43) is located close to the hinge position of the cabinet body (1) and the cabinet door (2).

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