A mine-used explosion-proof high-voltage vacuum power distribution device

Abstract

The application discloses a mine-used explosion-proof high-voltage vacuum power distribution device and relates to the technical field of power distribution devices. The mine-used explosion-proof high-voltage vacuum power distribution device comprises a cabinet door hinged to the left side of a cabinet body, a power distribution cabinet body electric element arranged in the interior of the cabinet body, an air cavity formed in the upper side of the cabinet body, an exhaust mechanism arranged in the interior of the air cavity, an extrusion plate, a spring and a sliding block, a sliding groove formed in the left side of the inner wall of the cabinet body and a sliding connection between the inner wall of the sliding groove and the outer wall of the extrusion plate. When the mine-used explosion-proof high-voltage vacuum power distribution device is used, the extrusion plate is retracted upwards when the cabinet door is closed, a connecting rod is pushed to the right to move an extrusion block, the gas in an air bag is exhausted to the interior of the cabinet body, the internal airflow is blown, dust is blown to be suspended, the dust can be exhausted together with the airflow when vacuumizing and the dust adhering to the inner wall of the power distribution cabinet is avoided.

Description

Technical Field

[0001] This invention relates to the field of power distribution equipment technology, specifically to a mine explosion-proof high-voltage vacuum power distribution device. Background Technology

[0002] During the use of explosion-proof high-voltage vacuum distribution cabinets in mines, the environment is often filled with flammable and explosive dust and gases. In order to achieve the purpose of explosion protection and damage prevention, it is necessary to maintain a sealed and vacuum state during use. However, after maintenance during use, dust in the air will enter the interior of the distribution cabinet. When the cabinet door is closed and a vacuum is drawn, some of the dust adhering to the distribution cabinet is not easy to be extracted and adheres to the inner wall of the distribution cabinet, which will cause safety hazards during use. Therefore, a device is needed to prevent dust from adhering to the inner wall of the distribution cabinet during vacuuming. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a mine-use explosion-proof high-voltage vacuum power distribution device, which aims to prevent dust from adhering to the inner wall of the power distribution cabinet during vacuuming.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a mine explosion-proof high-voltage vacuum power distribution device, including a cabinet door hinged to the left side of the cabinet, electrical components of the power distribution cabinet body installed inside the cabinet, an air cavity opened on the upper side of the cabinet, and an exhaust mechanism installed inside the air cavity;

[0005] The exhaust mechanism includes a compression plate, a spring, and a sliding block. A sliding groove is provided on the left side of the inner wall of the cabinet. The inner wall of the sliding groove is slidably connected to the outer wall of the compression plate. The upper side of the compression plate is connected to the inner wall of the sliding groove through a spring. The upper right inner wall of the sliding groove is slidably connected to the outer wall of the sliding block.

[0006] Preferably, the exhaust mechanism further includes a connecting rod, a compression block, an air bladder, a rotating mechanism, and a second connecting hole. The right side of the sliding block is fixedly connected to the left end of the connecting rod. The right end of the connecting rod passes through the cabinet and extends into the air chamber, where it is fixedly connected to the left side of the compression block. A first connecting hole is provided in the middle of the compression block. A first one-way valve is provided inside the first connecting hole, with the input side of the first one-way valve being the left side. The right side of the compression block is fixedly connected to the left side of the air bladder. The outer wall of the air bladder is fixedly connected to the inner wall of the air chamber. The lower side of the air chamber communicates with the interior of the cabinet through an opening. The rotating mechanism is located inside the opening. The upper side of the opening communicates with the interior of the air bladder. The left side of the interior of the air chamber communicates with the interior of the cabinet through the second connecting hole. A second one-way valve is provided inside the second connecting hole, with the input side of the second one-way valve being the lower side.

[0007] Preferably, the rotating mechanism includes a fixed ring, an exhaust block, a toggle block, an elastic sheet, and a lever. The outer wall of the fixed ring is slidably connected to the inner wall of the opening, and the inner wall of the fixed ring is rotatably connected to the outer wall of the exhaust block via a bearing. The lower surface of the fixed ring is connected to the lower side of the inner wall of the opening via an elastic sheet. The outer wall of the exhaust block is fixedly connected to one end of the toggle block, and the upper end of the lever is hinged to the inner wall of the opening via a torsion spring.

[0008] Preferably, the exhaust block has a hollow interior and several inclined exhaust holes are provided on the lower side of the exhaust block.

[0009] Preferably, the outer wall of the extrusion block is slidably connected to the inner wall of the air chamber.

[0010] Preferably, the lower side of the air chamber extends to the side wall of the cabinet, and the inner side wall of the cabinet is also provided with a rotating mechanism.

[0011] This invention provides a mine-use explosion-proof high-voltage vacuum power distribution device. It has the following advantages:

[0012] 1. This mine explosion-proof high-voltage vacuum power distribution device works by closing the cabinet door, causing the compression plate to contract upwards, which in turn pushes the connecting rod to the right to move the compression block, causing the gas inside the airbag to be discharged into the cabinet. This blows the airflow inside, causing the dust to be suspended. When vacuuming, the dust can be extracted along with the airflow, thus preventing the dust from adhering to the inner wall of the power distribution cabinet.

[0013] 2. In this mine explosion-proof high-voltage vacuum power distribution device, when the airflow blows into the cabinet door through the opening, the resistance inside the exhaust block will cause the exhaust block to move downward and extend into the air chamber. At the same time, when the airflow passes through the exhaust port on the lower side of the exhaust block, it will cause the exhaust block to rotate. As the exhaust block rotates, it will evenly disperse the airflow into the cabinet, so that the dust can be better blown away and suspended in the air.

[0014] 3. This mine explosion-proof high-voltage vacuum power distribution device rotates as the exhaust block moves downwards, and the concave part in the middle allows the lever to tilt upwards. When it rotates, the exhaust block continuously moves the lever to make it vibrate, which transmits the vibration to the inner wall of the cabinet, making it easier to blow off the dust on the inner wall surface of the cabinet.

[0015] 4. In this mine explosion-proof high-voltage vacuum power distribution device, when the extrusion block moves to the right, it will cause air to be drawn in from the left side. When it returns to its original position, the airflow from the left side will enter the air bladder through the one-way valve on the extrusion block to replenish the gas. Since the inner wall of the air bladder is a flexible structure, the tightness of the inner wall will change during the inflation and deflation process, which will make it difficult for dust to adhere to the inner wall. The dust inside can be easily discharged with the airflow, avoiding the accumulation of dust inside after long-term use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a frontal cross-sectional view of the present invention;

[0018] Figure 3 For the present invention Figure 2 A magnified structural diagram of A in the middle;

[0019] Figure 4 For the present invention Figure 3 A magnified structural diagram of B in the diagram;

[0020] Figure 5 This is a three-dimensional structural diagram of the exhaust block of the present invention.

[0021] In the diagram: 1 Cabinet body, 2 Cabinet door, 3 Electrical components of the distribution cabinet body, 4 Air chamber, 5 Exhaust mechanism, 501 Squeezing plate, 502 Spring, 503 Sliding block, 504 Connecting rod, 505 Squeezing block, 506 Airbag, 507 Rotating mechanism, 508 Second connecting hole, 701 Fixing ring, 702 Exhaust block, 703 Actuating block, 704 Elastic sheet, 705 Actuating lever. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0024] Please see Figure 1-5 The present invention provides a technical solution: a mine explosion-proof high-voltage vacuum power distribution device, including a cabinet door 2 hinged to the left side of the cabinet 1, electrical components 3 of the power distribution cabinet body are installed inside the cabinet 1, and an air chamber 4 is opened on the upper side of the cabinet 1, and an exhaust mechanism 5 is installed inside the air chamber 4.

[0025] The exhaust mechanism 5 includes a compression plate 501, a spring 502, and a sliding block 503. A slide groove is provided on the left side of the inner wall of the cabinet 1. The inner wall of the slide groove is slidably connected to the outer wall of the compression plate 501. The upper side of the compression plate 501 is connected to the inner wall of the slide groove through the spring 502. The upper right inner wall of the slide groove is slidably connected to the outer wall of the sliding block 503.

[0026] The exhaust mechanism 5 also includes a connecting rod 504, a compression block 505, an air bladder 506, a rotating mechanism 507, and a second connecting hole 508. The right side of the sliding block 503 is fixedly connected to the left end of the connecting rod 504. The right end of the connecting rod 504 passes through the cabinet 1 and extends into the air chamber 4, where it is fixedly connected to the left side of the compression block 505. A first connecting hole is provided in the middle of the compression block 505. The outer wall of the compression block 505 is slidably connected to the inner wall of the air chamber 4. A first one-way valve is provided inside the first connecting hole. The input side of the first one-way valve is on the left side, and the right side of the compression block 505 is connected to the air chamber 4. The left side of the airbag 506 is fixedly connected, and the outer wall of the airbag 506 is fixedly connected to the inner wall of the air chamber 4. The lower side of the air chamber 4 is connected to the interior of the cabinet 1 through an opening. The rotating mechanism 507 is located inside the opening. The upper side of the opening is connected to the interior of the airbag 506. The left side of the interior of the air chamber 4 is connected to the interior of the cabinet 1 through a second connecting hole 508. A second one-way valve is provided inside the second connecting hole 508. The input side of the second one-way valve is the lower side. The lower side of the air chamber 4 extends to the side wall of the cabinet 1. The rotating mechanism 507 is also provided on the inner side wall of the cabinet 1.

[0027] The rotating mechanism 507 includes a fixed ring 701, an exhaust block 702, a toggle block 703, an elastic sheet 704, and a lever 705. The outer wall of the fixed ring 701 is slidably connected to the inner wall of the opening. The inner wall of the fixed ring 701 is rotatably connected to the outer wall of the exhaust block 702 through a bearing. The exhaust block 702 has a hollow structure inside. Several inclined exhaust holes are opened on the lower side of the exhaust block 702. The lower surface of the fixed ring 701 is connected to the lower side of the inner wall of the opening through the elastic sheet 704. The outer wall of the exhaust block 702 is fixedly connected to one end of the toggle block 703. The upper end of the lever 705 is hinged to the inner wall of the opening through a torsion spring.

[0028] In use, closing cabinet door 2 causes it to press upward against the pressure plate 501, causing spring 502 to contract. This causes the gas on the upper side of pressure plate 501 to push sliding block 503 to the right. Sliding block 503 then drives pressure block 505 to the right via connecting rod 504. Simultaneously, air is drawn in from the left side of air chamber 4 through the second connecting hole 508. As pressure block 505 moves to the right, the gas inside airbag 506 moves downward through rotating mechanism 507. When the airflow passes through exhaust block 702, it causes exhaust block 702 to move downward. Due to the resistance to airflow inside exhaust block 702, it extends downward out of air chamber 4. Simultaneously, when airflow passes through the exhaust port on the lower side of exhaust block 702, it causes exhaust block 702 to rotate, distributing the airflow evenly. The air is blown into the interior of cabinet 1, allowing the dust to be better dispersed and suspended in the air. As the exhaust block 702 moves downward, it rotates, and the indentation in its middle allows the lever 705 to tilt upward. When it rotates, the exhaust block 702 continuously moves the lever 705 to vibrate, which transmits the vibration to the inner wall of cabinet 1, making it easier to blow off the dust on the inner wall surface of cabinet 1. When the cabinet door is opened, the spring 502 pushes the compression plate 501 to reset, and the compression block 505 is reset. The gas on the left side of the compression block 505 enters the interior of the airbag 506 to fill the interior of the airbag 506 with gas.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mine explosion-proof high-voltage vacuum power distribution device, comprising a cabinet (1) with a cabinet door (2) hinged to the left side, wherein the cabinet (1) contains electrical components (3) of the power distribution cabinet body, characterized in that: An air chamber (4) is provided on the upper side of the cabinet (1), and an exhaust mechanism (5) is provided inside the air chamber (4). The exhaust mechanism (5) includes a pressing plate (501), a spring (502), and a sliding block (503). A sliding groove is provided on the left side of the inner wall of the cabinet (1). The inner wall of the sliding groove is slidably connected to the outer wall of the pressing plate (501). The upper side of the pressing plate (501) is connected to the inner wall of the sliding groove through the spring (502). The upper right inner wall of the sliding groove is slidably connected to the outer wall of the sliding block (503). The exhaust mechanism (5) further includes a connecting rod (504), a compression block (505), an air bladder (506), a rotating mechanism (507), and a second connecting hole (508). The right side of the sliding block (503) is fixedly connected to the left end of the connecting rod (504). The right end of the connecting rod (504) passes through the cabinet (1) and extends into the air chamber (4) and is fixedly connected to the left side of the compression block (505). A first connecting hole is provided in the middle of the compression block (505). A first one-way valve is provided inside the first connecting hole. The input side of the first one-way valve is on the left side. The right side of the block (505) is fixedly connected to the left side of the airbag (506). The outer wall of the airbag (506) is fixedly connected to the inner wall of the air chamber (4). The lower side of the air chamber (4) is connected to the interior of the cabinet (1) through an opening. The rotating mechanism (507) is located inside the opening. The upper side of the opening is connected to the interior of the airbag (506). The left side of the interior of the air chamber (4) is connected to the interior of the cabinet (1) through a second connecting hole (508). A second one-way valve is provided inside the second connecting hole (508). The input side of the second one-way valve is the lower side.

2. The mine explosion-proof high-voltage vacuum power distribution device according to claim 1, characterized in that: The rotating mechanism (507) includes a fixed ring (701), an exhaust block (702), a toggle block (703), an elastic sheet (704), and a lever (705). The outer wall of the fixed ring (701) is slidably connected to the inner wall of the opening. The inner wall of the fixed ring (701) is rotatably connected to the outer wall of the exhaust block (702) through a bearing. The lower surface of the fixed ring (701) is connected to the lower side of the inner wall of the opening through the elastic sheet (704). The outer wall of the exhaust block (702) is fixedly connected to one end of the toggle block (703). The upper end of the lever (705) is hinged to the inner wall of the opening through a torsion spring.

3. A mine explosion-proof high-voltage vacuum power distribution device according to claim 2, characterized in that: The interior of the exhaust block (702) is hollow, and several inclined exhaust holes are provided on the lower side of the exhaust block (702).

4. A mine explosion-proof high-voltage vacuum power distribution device according to claim 1, characterized in that: The outer wall of the extrusion block (505) is slidably connected to the inner wall of the air chamber (4).

5. A mine explosion-proof high-voltage vacuum power distribution device according to claim 1, characterized in that: The lower side of the air chamber (4) extends to the side wall of the cabinet (1), and the inner side wall of the cabinet (1) is also provided with a rotating mechanism (507).

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